3x+86=7x+2

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Solution for 3x+86=7x+2 equation: 



3x+86=7x+2

We move all terms to the left:

3x+86-(7x+2)=0

We get rid of parentheses

3x-7x-2+86=0

We add all the numbers together, and all the variables

-4x+84=0

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

-4x=-84

x=-84/-4

x=+21

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