X+78=2x-2

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



X+78=2X-2

We move all terms to the left:

X+78-(2X-2)=0

We get rid of parentheses

X-2X+2+78=0

We add all the numbers together, and all the variables

-1X+80=0

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

-X=-80

X=-80/-1

X=+80

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