All categories

3 years ago

How to solve linear equation

Mathematics

2 answers:

ch4aika [34]3 years ago

6 0

Answer:

1.Step 1: Simplify each side, if needed.

2.Step 2: Use Add./Sub. Properties to move the variable term to one side and all other terms to the other side.

3.Step 3: Use Mult./Div. ...

4.Step 4: Check your answer.

I find this is the quickest and easiest way to approach linear equations.

5.Example 6: Solve for the variable.

Nata [24]3 years ago

4 0

You can use elimination and substitution method

EXAMPLE :

Given :

2x + y = 5

3x - 5y = 1

2x + y = 5 (× -5)

3x - 5y = 1

__________

-10x - 5y = - 25

3x - 5y = 1

____________ _ (elimination)

-13x = - 26

x = - 26/-13

x = 2

Substitution x = 2 to 2x + y = 5 :

2x + y = 5

2(2) + y = 5

4 + y = 5

y = 5 - 4

y = 1

You might be interested in

Which function is graphed below

Marianna [84]

Answer:

y = tan(x) - 2

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the measure of the question mark angle?

solmaris [256]

140

25+105+90=220
360-220=140

5 0

3 years ago

If the price of an object went up 25% to $10.25 what was the original price?

Naily [24]

Answer:

$8.20

Step-by-step explanation:

125% = 10.25

1% = 0.082

100% = 8.20

8 0

3 years ago

H= -16t^2+16t+192 When will the ball hit the ground?

Nadusha1986 [10]

-16t^2+16t+192= 0 (when the ball hits the ground, h will be zero)

Use the quadratic formula to solve the equation (If you don't know how to solve quadratic equations, just ping me dude and I'll try my best to help you)

We get x=-3 and 4

Now since time can't be negative, therefore the answer is after 4 seconds

6 0

2 years ago

Write the slope-intercept form of the equation of each line.

shtirl [24]

Answer:

12) $y = -x + 8$

11) $y = 12x + 22$

10) $y = 5x - 4$

9) $y = -2x + 1$

8) $y = 2x + 9$

7) $y = 12x - 28$

6) $y = 1\frac{1}{3}x + 2$

5) $y = 4x - 2$

4) $y = x$

3) $y = 1\frac{2}{5}x - 7$

2) $y = 2x - 4$

1) $y = \frac{2}{3}x - 8$

Step-by-step explanation:

12)

y - 4 = −(x - 4)

y - 4 = −x + 4

+ 4 + 4

__________

$y = -x + 8$

_______________________________________________

11)

y + 2 = 12(x + 2)

y + 2 = 12x + 24

- 2 - 2

____________

$y = 12x + 22$

_______________________________________________

10)

y - 1 = 5(x - 1)

y - 1 = 5x - 5

+ 1 + 1

_________

$y = 5x - 4$

_______________________________________________

y - 5 = −2(x + 2)

y - 5 = −2x - 4

+ 5 + 5

___________

$y = -2x + 1$

_______________________________________________

y - 5 = 2(x + 2)

y - 5 = 2x + 4

+ 5 + 5

__________

$y = 2x + 9$

_______________________________________________

y + 4 = 12(x - 2)

y + 4 = 12x - 24

- 4 - 4

____________

$y = 12x - 28$

_______________________________________________

4x - 3y = −6

-4x - 4x

__________

−3y = −4x - 6

___ _____

−3 −3

$y = 1\frac{1}{3} + 2$

_______________________________________________

4x - y = 2

-4x - 4x

_______

−y = −4x + 2

$y = 4x - 2$

_______________________________________________

x - y = 0

______

−y = −x

$y = x$

_______________________________________________

7x - 5y = 35

-7x - 7x

_________

−5y = −7x + 35

___ ______

−5 −5

$y = 1\frac{2}{5}x - 7$

_______________________________________________

2x - y = 4

-2x - 2x

_______

−y = −2x + 4

$y = 2x - 4$

_______________________________________________

2x - 3y = 24

-2x - 2x

_________

−3y = −2x + 24

___ _______

−3 −3

$y = \frac{2}{3}x - 8$

I am delighted to assist you anytime.

5 0

3 years ago