3(x-15)=-x+7

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



3(x-15)=-x+7

We move all terms to the left:

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

We add all the numbers together, and all the variables

3(x-15)-(-1x+7)=0

We multiply parentheses

3x-(-1x+7)-45=0

We get rid of parentheses

3x+1x-7-45=0

We add all the numbers together, and all the variables

4x-52=0

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

4x=52

x=52/4

x=13

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