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4x-5=-12x-77
We move all terms to the left:
4x-5-(-12x-77)=0
We get rid of parentheses
4x+12x+77-5=0
We add all the numbers together, and all the variables
16x+72=0
We move all terms containing x to the left, all other terms to the right
16x=-72
x=-72/16
x=-4+1/2
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