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-13=5x-1+x
We move all terms to the left:
-13-(5x-1+x)=0
We add all the numbers together, and all the variables
-(6x-1)-13=0
We get rid of parentheses
-6x+1-13=0
We add all the numbers together, and all the variables
-6x-12=0
We move all terms containing x to the left, all other terms to the right
-6x=12
x=12/-6
x=-2
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