90=(3x+3)+(5x-9)

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Solution for 90=(3x+3)+(5x-9) equation: 



90=(3x+3)+(5x-9)

We move all terms to the left:

90-((3x+3)+(5x-9))=0



We calculate terms in parentheses: -((3x+3)+(5x-9)), so:

(3x+3)+(5x-9)

We get rid of parentheses

3x+5x+3-9

We add all the numbers together, and all the variables

8x-6

Back to the equation:

-(8x-6)



We get rid of parentheses

-8x+6+90=0

We add all the numbers together, and all the variables

-8x+96=0

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

-8x=-96

x=-96/-8

x=+12

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