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13=3(x-1)-2
We move all terms to the left:
13-(3(x-1)-2)=0
We calculate terms in parentheses: -(3(x-1)-2), so:We get rid of parentheses
3(x-1)-2
We multiply parentheses
3x-3-2
We add all the numbers together, and all the variables
3x-5
Back to the equation:
-(3x-5)
-3x+5+13=0
We add all the numbers together, and all the variables
-3x+18=0
We move all terms containing x to the left, all other terms to the right
-3x=-18
x=-18/-3
x=+6
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