90=(3x+7)+(6x+11)

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Solution for 90=(3x+7)+(6x+11) equation:



90=(3x+7)+(6x+11)
We move all terms to the left:
90-((3x+7)+(6x+11))=0
We calculate terms in parentheses: -((3x+7)+(6x+11)), so:
(3x+7)+(6x+11)
We get rid of parentheses
3x+6x+7+11
We add all the numbers together, and all the variables
9x+18
Back to the equation:
-(9x+18)
We get rid of parentheses
-9x-18+90=0
We add all the numbers together, and all the variables
-9x+72=0
We move all terms containing x to the left, all other terms to the right
-9x=-72
x=-72/-9
x=+8

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