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8x=-2x-7
We move all terms to the left:
8x-(-2x-7)=0
We get rid of parentheses
8x+2x+7=0
We add all the numbers together, and all the variables
10x+7=0
We move all terms containing x to the left, all other terms to the right
10x=-7
x=-7/10
x=-7/10
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