87=5x+3(5x+9)

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Solution for 87=5x+3(5x+9) equation:



87=5x+3(5x+9)
We move all terms to the left:
87-(5x+3(5x+9))=0
We calculate terms in parentheses: -(5x+3(5x+9)), so:
5x+3(5x+9)
We multiply parentheses
5x+15x+27
We add all the numbers together, and all the variables
20x+27
Back to the equation:
-(20x+27)
We get rid of parentheses
-20x-27+87=0
We add all the numbers together, and all the variables
-20x+60=0
We move all terms containing x to the left, all other terms to the right
-20x=-60
x=-60/-20
x=+3

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