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28-18=5(x-9)
We move all terms to the left:
28-18-(5(x-9))=0
We add all the numbers together, and all the variables
-(5(x-9))+10=0
We calculate terms in parentheses: -(5(x-9)), so:We get rid of parentheses
5(x-9)
We multiply parentheses
5x-45
Back to the equation:
-(5x-45)
-5x+45+10=0
We add all the numbers together, and all the variables
-5x+55=0
We move all terms containing x to the left, all other terms to the right
-5x=-55
x=-55/-5
x=+11
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