128=-12+x

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Solution for 128=-12+x equation: 



128=-12+x

We move all terms to the left:

128-(-12+x)=0

We add all the numbers together, and all the variables

-(x-12)+128=0

We get rid of parentheses

-x+12+128=0

We add all the numbers together, and all the variables

-1x+140=0

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

-x=-140

x=-140/-1

x=+140

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