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-47=-7-8x
We move all terms to the left:
-47-(-7-8x)=0
We add all the numbers together, and all the variables
-(-8x-7)-47=0
We get rid of parentheses
8x+7-47=0
We add all the numbers together, and all the variables
8x-40=0
We move all terms containing x to the left, all other terms to the right
8x=40
x=40/8
x=5
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