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9(x-1)-13x=-(x+5)
We move all terms to the left:
9(x-1)-13x-(-(x+5))=0
We add all the numbers together, and all the variables
-13x+9(x-1)-(-(x+5))=0
We multiply parentheses
-13x+9x-(-(x+5))-9=0
We calculate terms in parentheses: -(-(x+5)), so:We add all the numbers together, and all the variables
-(x+5)
We get rid of parentheses
-x-5
We add all the numbers together, and all the variables
-1x-5
Back to the equation:
-(-1x-5)
-4x-(-1x-5)-9=0
We get rid of parentheses
-4x+1x+5-9=0
We add all the numbers together, and all the variables
-3x-4=0
We move all terms containing x to the left, all other terms to the right
-3x=4
x=4/-3
x=-1+1/3
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