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8x-45=2x+3
We move all terms to the left:
8x-45-(2x+3)=0
We get rid of parentheses
8x-2x-3-45=0
We add all the numbers together, and all the variables
6x-48=0
We move all terms containing x to the left, all other terms to the right
6x=48
x=48/6
x=8
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