1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
FromTheMoon [43]
3 years ago
11

How do I solve linear equations?​

Mathematics
2 answers:
ziro4ka [17]3 years ago
8 0

Answer:

It's actually very easy. I learned them in 6th grade. There are 2 step linear equations too! I'll give an example.

Step-by-step explanation:

equations:

5x-4=7

1. draw a line through the equation sign going down.

2. you are going to change the - sign to a + because you have to do the inverse operation.

3. Then you are going to add the four under both sides (4 and 7) when you add them you are going to get 7+4= 11 and 4-4 is just going to put a zero which is going to turn into an x or whatever your variable is.

4. The 5 and the x are together that means multipilcation so your going to do the inverse operation and that will be division.

5. then you do 5 divided by 11. then you get your answer  

hope this helps

mark me please

lubasha [3.4K]3 years ago
4 0

Answer:

If the equation contains any fractions use the least common denominator to clear the fractions. We will do this by multiplying both sides of the equation by the LCD.

Also, if there are variables in the denominators of the fractions identify values of the variable which will give division by zero as we will need to avoid these values in our solution.

Simplify both sides of the equation. This means clearing out any parenthesis and combining like terms.

Use the first two facts above to get all terms with the variable in them on one side of the equations (combining into a single term of course) and all constants on the other side.

If the coefficient of the variable is not a one use the third or fourth fact above (this will depend on just what the number is) to make the coefficient a one.

Note that we usually just divide both sides of the equation by the coefficient if it is an integer or multiply both sides of the equation by the reciprocal of the coefficient if it is a fraction.

VERIFY YOUR ANSWER! This is the final step and the most often skipped step, yet it is probably the most important step in the process. With this step you can know whether or not you got the correct answer long before your instructor ever looks at it. We verify the answer by plugging the results from the previous steps into the original equation. It is very important to plug into the original equation since you may have made a mistake in the very first step that led you to an incorrect answer.

Also, if there were fractions in the problem and there were values of the variable that give division by zero (recall the first step…) it is important to make sure that one of these values didn’t end up in the solution set. It is possible, as we’ll see in an example, to have these values show up in the solution set.

Step-by-step explanation:

hope i help

You might be interested in
Let h(x)=(g o f)(x)=√x+3 <br> Which of the following could be a possible decomposition of h(x)?
hodyreva [135]
In this case, h(x) = sqrt(x) + 3

A. f(x)=x+3; g(x)=√x 
B. f(x)=x; g(x)=x+3 
C. f(x)=√x; g(x)=x+3 
D. f(x)=3x; g(x)=√x

Again, you need to find a function f(x) that once evaluated in g(x) gives us h(x)

h(x) =  g(f(x))

Looking at the options, the answer is C.

g(f(x)) = f(x) + 3 = sqrt (x) + 3 = h(x)
8 0
3 years ago
Read 2 more answers
A school has a parking lot that is 150.23 feet by 135.12 feet. What is the perimeter of the parking lot?
elena-14-01-66 [18.8K]

Answer: 570.70 ft

Step-by-step explanation:

The perimeter is the distance around the entire parking lot.

The measurement of 150.23 ft by 135.12 ft is half of the distance of the lot because it represents just two sides yet there are 4 sides.

The other two sides have the same measurement as this is a rectangle.

The perimeter of the parking lot is:

= (150.23 * 2) + (135.12 * 2)

= 570.70 ft

4 0
3 years ago
The number of men in a tour group is 15 times the number of women. If there are 48 people in the group, how many are men? A. 45
ankoles [38]

A. 45 hope this is the correct answer if not, sorry!

3 0
3 years ago
Read 2 more answers
A sled is being pulled across a floor by two ropes such that the angle between them is 40°. If the forces on the ropes are 100 p
Dafna1 [17]

Answer:

option 4 ⇒ 236 lb.

Step-by-step explanation:

Best explanation of the question is as shown in the attached figure.

we will use the parallelogram method to calculate resultant force.

to get the length of the resultant force ⇒ use the cosines law

The cosine law is a² = b² + c² - 2 * b * c * cos (∠A)

Applying at the question where b = F₁  , c = F₂  and  ∠A = ∠x

Given that F₁ = 100 pounds  , F₂ = 150 pounds  and  ∠x = 180° - 40° = 140°

∴ (Resultant force)² = 100² + 150² - 2 * 100 * 150 * cos (∠140) = 55481

∴ Resultant force = √55481 = 235.54 ≅ 236 pounds

The answer is option 4 ⇒ 236 lb.

8 0
3 years ago
For the polynomial below, find F(-3)<br><br> F(-3)= -4x^2+3x-1
Elodia [21]
f(-3)=-4\cdot(-3)^2+3\cdot(-3)-1=-4\cdot9-9-1=-36-10=-46
4 0
3 years ago
Other questions:
  • By using double inequality describe all the numbers that are:
    11·1 answer
  • How do I solve this ? <br><br> Polynomials<br><br> (x - 2)(x² + 2x + 4)
    6·1 answer
  • PLS HELP NEED ASAP The formula d=rt gives the distance traveled for a rate r and an amount of time t. A car travels at a rate of
    7·2 answers
  • Which of the following is the graph of f(x) = x^2? Click on the graph until the correct graph appears.
    7·1 answer
  • How do you solve this problem
    11·1 answer
  • Un terreno rectangular tiene 12 m. De frente y 40 m de fondo .
    12·1 answer
  • Last question pls answer
    10·1 answer
  • Create an equivalent expression that includes a set of parentheses that make the value of the expression 13. Remember, you can h
    5·2 answers
  • Plssssssssssssssssssssssssssssssssssssssssssssssss
    13·2 answers
  • Which pair of angles are vertical angles? 6 and 5 2 and 3 1 and 3 5 and 8
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!