3(x+7)=x-4

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Solution for 3(x+7)=x-4 equation: 



3(x+7)=x-4

We move all terms to the left:

3(x+7)-(x-4)=0

We multiply parentheses

3x-(x-4)+21=0

We get rid of parentheses

3x-x+4+21=0

We add all the numbers together, and all the variables

2x+25=0

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

2x=-25

x=-25/2

x=-12+1/2

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