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69=5x+2(x-4)
We move all terms to the left:
69-(5x+2(x-4))=0
We calculate terms in parentheses: -(5x+2(x-4)), so:We get rid of parentheses
5x+2(x-4)
We multiply parentheses
5x+2x-8
We add all the numbers together, and all the variables
7x-8
Back to the equation:
-(7x-8)
-7x+8+69=0
We add all the numbers together, and all the variables
-7x+77=0
We move all terms containing x to the left, all other terms to the right
-7x=-77
x=-77/-7
x=+11
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