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2(4.5x-3)=-42
We move all terms to the left:
2(4.5x-3)-(-42)=0
We add all the numbers together, and all the variables
2(4.5x-3)+42=0
We multiply parentheses
8x-6+42=0
We add all the numbers together, and all the variables
8x+36=0
We move all terms containing x to the left, all other terms to the right
8x=-36
x=-36/8
x=-4+1/2
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