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13=-13-8x
We move all terms to the left:
13-(-13-8x)=0
We add all the numbers together, and all the variables
-(-8x-13)+13=0
We get rid of parentheses
8x+13+13=0
We add all the numbers together, and all the variables
8x+26=0
We move all terms containing x to the left, all other terms to the right
8x=-26
x=-26/8
x=-3+1/4
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