mohammedbrakaou
Answered

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a, 4x= -28
b, x- -6= -2
c, -x+= -9
d, -3x+7=1
e, 25x+-11= -86



2, here is an equation 2x+9= -15. write three different equations that have the same solution 2x+9= -15. show or explain how you found them.?
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Sagot :

gangumin696

Answer:

A. x = -7, B. x = -8, C. x = 9, D. x = 2, E. x = -3

Step-by-step explanation:

A. 4x= -28

Divide both sides by 4.

[tex]\frac{4x}{4\\}[/tex]=[tex]\frac{-28}{4}[/tex]. x= -7

B. x- -6= -2 ->  x+6= -2

Subtraction 6 to both sides.

x- +6-6= -2-6,  x= -8

C. -x+= -9 -> x= 9

D. -3x+7=1

Subtraction 7 to both sides.

-3x+7-7 =1-7 , -3x=-6

Divide both sides by -3.

[tex]\frac{-3x}{-3}[/tex] = [tex]\frac{-6}{-3}[/tex], x= 2

E. 25x+-11= -86 -> 25x-11= -86

Add 11 to both sides.

25x-11+11= -86+11, 25x= -75

Divide both sides by 25.

[tex]\frac{25x}{25}[/tex] = [tex]\frac{-75}{25}[/tex], x= -3

2. 2x+9= -15

Subtraction 9 to both sides.

2x+9-9= -15-9,  2x= -24

Divide both sides by 2.

[tex]\frac{2x}{2}[/tex] = [tex]\frac{24}{2}[/tex] ,  x= 12

I don't think there's an answer.

I hope it helps you!

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