90-2x=8x

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Solution for 90-2x=8x equation: 



90-2x=8x

We move all terms to the left:

90-2x-(8x)=0

We add all the numbers together, and all the variables

-10x+90=0

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

-10x=-90

x=-90/-10

x=+9

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