-7x+3(x+7)=-15

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Solution for -7x+3(x+7)=-15 equation: 



-7x+3(x+7)=-15

We move all terms to the left:

-7x+3(x+7)-(-15)=0

We add all the numbers together, and all the variables

-7x+3(x+7)+15=0

We multiply parentheses

-7x+3x+21+15=0

We add all the numbers together, and all the variables

-4x+36=0

We move all terms containing x to the left, all other terms to the right

-4x=-36

x=-36/-4

x=+9

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