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
nikklg [1K]
3 years ago
5

How do you solve equations and check for solutions

Mathematics
2 answers:
White raven [17]3 years ago
5 0
Okay its really easy. equations, you just flip then around like if you have 2x+16=6x, you would subtract 2x from both sides.
 
16=6x-2x
16=4x
16/4 = x   (divide with 4)
4 = x

how you check is you plug in.

2(4)+16=6(4)
8+16 = 24

There you go!


Kobotan [32]3 years ago
3 0
It all depends on the math question but usually you solve for x, then check it. Plug x back in and see if it works. But it all depends on the math problem

You might be interested in
Write a linear function f with the values f (0) =4 and f(3)=-8
Darya [45]

Answer:

Answer:

f(x) = - 4x + 4

Step-by-step explanation:

Step-by-step explanation:

A linear function has the form

f(x) = ax + b, thus

f(0) = a(0) + b = 4, that is

0 + b = 4 , hence b = 4

f(3) = 3a + b = - 8 ← substitute b = 4

3a + 4 = - 8 ( subtract 4 from both sides )

3a = - 12 ( divide both sides by 3 )

a = - 4, thus

f(x) = - 4x + 4

8 0
3 years ago
Simplify <br> 7.2x10^3/1.8x10^7
spayn [35]

To simplify and solve this equation we must follow PEMDAS.

P=Parentheses

E=Exponents

M=Multiplication (from left to right)

D=Division (from left to right)

A=Addition

S=Substraction

We begin the process.

10^3=1000

10^7=10000000

New equation looks like this:

7.2*1000/1.8*10000000

We then multiply

7.2*1000= 7200

7200/1.8=4000

4000*10000000= 40000000000

<em>So our final answer is 40000000000.</em>

Hope this helps!

P.S. I forgot this was scientific notation and I solved it a different way. But both ways give the same answer. Let me know if you want the other method.


3 0
3 years ago
Given f(x) = -* -<br> - 5, solve for x when f(x) = -3.
Ne4ueva [31]

Answer:

x = -2

Step-by-step explanation:

Step 1: Define

f(x) = -x - 5

f(x) = -3

Step 2: Substitute and Evaluate

-3 = -x - 5

2 = -x

x = -2

7 0
3 years ago
Read 2 more answers
A band leader wants to line up 236 band members in 4 rows so that each row has 2 members more than the row before. How many band
fenix001 [56]
Row one:56
Row two: 58
Row three: 60
Row four:62
7 0
3 years ago
Read 2 more answers
Negative eleven times positive 8 equals
Alex73 [517]

Answer:

-11 x 8 = -88

Step-by-step explanation:

negative times positive = negative

negative times negative = positive

positive times positive = positive

7 0
3 years ago
Other questions:
  • the perimeter of a rectangle is 124 cm. the length is six more than three times the width. what are the dimensions of the rectan
    11·2 answers
  • Find the percent change from 70 to 56
    8·1 answer
  • Adding and subtracting With Scientific notation<br><br><br>Please help
    9·1 answer
  • Help with this one!<br><br><br> Show steps pls :)
    6·1 answer
  • 26-4s=9s what's the answer
    11·2 answers
  • Given x less than y, compare the following expressions and determine which is greater: 2x-y;2y-x. Explain your answer.
    12·1 answer
  • Given L(-4, 3) and M(-7, -2), what is the length of segment LM?
    14·1 answer
  • HELP MEEEEEEEEEEEE PRETTY PLEASE
    7·2 answers
  • A baker can bake 5 cakes in an hour. How many cakes can she bake in c minutes?
    7·1 answer
  • How do you solve this ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!