90=2(4x+5)+2(x)

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Solution for 90=2(4x+5)+2(x) equation:



90=2(4x+5)+2(x)
We move all terms to the left:
90-(2(4x+5)+2(x))=0
We calculate terms in parentheses: -(2(4x+5)+2x), so:
2(4x+5)+2x
We add all the numbers together, and all the variables
2x+2(4x+5)
We multiply parentheses
2x+8x+10
We add all the numbers together, and all the variables
10x+10
Back to the equation:
-(10x+10)
We get rid of parentheses
-10x-10+90=0
We add all the numbers together, and all the variables
-10x+80=0
We move all terms containing x to the left, all other terms to the right
-10x=-80
x=-80/-10
x=+8

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