12-5x=40+2x

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Solution for 12-5x=40+2x equation: 



12-5x=40+2x

We move all terms to the left:

12-5x-(40+2x)=0

We add all the numbers together, and all the variables

-5x-(2x+40)+12=0

We get rid of parentheses

-5x-2x-40+12=0

We add all the numbers together, and all the variables

-7x-28=0

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

-7x=28

x=28/-7

x=-4

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