90=(2x-4)+(3x+4)

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Solution for 90=(2x-4)+(3x+4) equation:



90=(2x-4)+(3x+4)
We move all terms to the left:
90-((2x-4)+(3x+4))=0
We calculate terms in parentheses: -((2x-4)+(3x+4)), so:
(2x-4)+(3x+4)
We get rid of parentheses
2x+3x-4+4
We add all the numbers together, and all the variables
5x
Back to the equation:
-(5x)
We move all terms containing x to the left, all other terms to the right
-5x=-90
x=-90/-5
x=+18

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