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-x+7=-5x-5
We move all terms to the left:
-x+7-(-5x-5)=0
We add all the numbers together, and all the variables
-1x-(-5x-5)+7=0
We get rid of parentheses
-1x+5x+5+7=0
We add all the numbers together, and all the variables
4x+12=0
We move all terms containing x to the left, all other terms to the right
4x=-12
x=-12/4
x=-3
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