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7(x+12)+9=65
We move all terms to the left:
7(x+12)+9-(65)=0
We add all the numbers together, and all the variables
7(x+12)-56=0
We multiply parentheses
7x+84-56=0
We add all the numbers together, and all the variables
7x+28=0
We move all terms containing x to the left, all other terms to the right
7x=-28
x=-28/7
x=-4
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