90=2x+15+6x-45

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Solution for 90=2x+15+6x-45 equation: 



90=2x+15+6x-45

We move all terms to the left:

90-(2x+15+6x-45)=0

We add all the numbers together, and all the variables

-(8x-30)+90=0

We get rid of parentheses

-8x+30+90=0

We add all the numbers together, and all the variables

-8x+120=0

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

-8x=-120

x=-120/-8

x=+15

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