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13-42=3(x-5)-5
We move all terms to the left:
13-42-(3(x-5)-5)=0
We add all the numbers together, and all the variables
-(3(x-5)-5)-29=0
We calculate terms in parentheses: -(3(x-5)-5), so:We get rid of parentheses
3(x-5)-5
We multiply parentheses
3x-15-5
We add all the numbers together, and all the variables
3x-20
Back to the equation:
-(3x-20)
-3x+20-29=0
We add all the numbers together, and all the variables
-3x-9=0
We move all terms containing x to the left, all other terms to the right
-3x=9
x=9/-3
x=-3
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