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-5+4=-2x+15
We move all terms to the left:
-5+4-(-2x+15)=0
We add all the numbers together, and all the variables
-(-2x+15)-1=0
We get rid of parentheses
2x-15-1=0
We add all the numbers together, and all the variables
2x-16=0
We move all terms containing x to the left, all other terms to the right
2x=16
x=16/2
x=8
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