90=x+6(x+7)

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



90=x+6(x+7)
We move all terms to the left:
90-(x+6(x+7))=0
We calculate terms in parentheses: -(x+6(x+7)), so:
x+6(x+7)
We multiply parentheses
x+6x+42
We add all the numbers together, and all the variables
7x+42
Back to the equation:
-(7x+42)
We get rid of parentheses
-7x-42+90=0
We add all the numbers together, and all the variables
-7x+48=0
We move all terms containing x to the left, all other terms to the right
-7x=-48
x=-48/-7
x=6+6/7

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