90-2x=30+2x

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



90-2x=30+2x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-2x-2x-30+90=0

We add all the numbers together, and all the variables

-4x+60=0

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

-4x=-60

x=-60/-4

x=+15

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