2x+90=8x-30

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Solution for 2x+90=8x-30 equation: 



2x+90=8x-30

We move all terms to the left:

2x+90-(8x-30)=0

We get rid of parentheses

2x-8x+30+90=0

We add all the numbers together, and all the variables

-6x+120=0

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

-6x=-120

x=-120/-6

x=+20

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