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-4x-7=-8x=7
We move all terms to the left:
-4x-7-(-8x)=0
We get rid of parentheses
-4x+8x-7=0
We add all the numbers together, and all the variables
4x-7=0
We move all terms containing x to the left, all other terms to the right
4x=7
x=7/4
x=1+3/4
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