-78=-40-2+x

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Solution for -78=-40-2+x equation: 



-78=-40-2+x

We move all terms to the left:

-78-(-40-2+x)=0

We add all the numbers together, and all the variables

-(x-42)-78=0

We get rid of parentheses

-x+42-78=0

We add all the numbers together, and all the variables

-1x-36=0

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

-x=36

x=36/-1

x=-36

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