2x-78=x+42

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Solution for 2x-78=x+42 equation: 



2x-78=x+42

We move all terms to the left:

2x-78-(x+42)=0

We get rid of parentheses

2x-x-42-78=0

We add all the numbers together, and all the variables

x-120=0

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

x=120

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