-2(7-x)+12=54

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Solution for -2(7-x)+12=54 equation: 



-2(7-x)+12=54

We move all terms to the left:

-2(7-x)+12-(54)=0

We add all the numbers together, and all the variables

-2(-1x+7)+12-54=0

We add all the numbers together, and all the variables

-2(-1x+7)-42=0

We multiply parentheses

2x-14-42=0

We add all the numbers together, and all the variables

2x-56=0

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

2x=56

x=56/2

x=28

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