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(-8)2+3x=12x+4
We move all terms to the left:
(-8)2+3x-(12x+4)=0
We add all the numbers together, and all the variables
3x-(12x+4)-16=0
We get rid of parentheses
3x-12x-4-16=0
We add all the numbers together, and all the variables
-9x-20=0
We move all terms containing x to the left, all other terms to the right
-9x=20
x=20/-9
x=-2+2/9
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