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8x-(4x+3)=-45
We move all terms to the left:
8x-(4x+3)-(-45)=0
We add all the numbers together, and all the variables
8x-(4x+3)+45=0
We get rid of parentheses
8x-4x-3+45=0
We add all the numbers together, and all the variables
4x+42=0
We move all terms containing x to the left, all other terms to the right
4x=-42
x=-42/4
x=-10+1/2
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