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13(-x+2x-1)=3(4x+13)-4
We move all terms to the left:
13(-x+2x-1)-(3(4x+13)-4)=0
We add all the numbers together, and all the variables
13(x-1)-(3(4x+13)-4)=0
We multiply parentheses
13x-(3(4x+13)-4)-13=0
We calculate terms in parentheses: -(3(4x+13)-4), so:We get rid of parentheses
3(4x+13)-4
We multiply parentheses
12x+39-4
We add all the numbers together, and all the variables
12x+35
Back to the equation:
-(12x+35)
13x-12x-35-13=0
We add all the numbers together, and all the variables
x-48=0
We move all terms containing x to the left, all other terms to the right
x=48
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