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-7x-4(x=3)=65
We move all terms to the left:
-7x-4(x-(3))=0
We multiply parentheses
-7x-4x+12=0
We add all the numbers together, and all the variables
-11x+12=0
We move all terms containing x to the left, all other terms to the right
-11x=-12
x=-12/-11
x=1+1/11
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