2-7x=-138

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Solution for 2-7x=-138 equation: 



2-7x=-138

We move all terms to the left:

2-7x-(-138)=0

We add all the numbers together, and all the variables

-7x+140=0

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

-7x=-140

x=-140/-7

x=+20

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