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12-4(2x+9)=-8(x+13)
We move all terms to the left:
12-4(2x+9)-(-8(x+13))=0
We multiply parentheses
-8x-(-8(x+13))-36+12=0
We calculate terms in parentheses: -(-8(x+13)), so:We add all the numbers together, and all the variables
-8(x+13)
We multiply parentheses
-8x-104
Back to the equation:
-(-8x-104)
-8x-(-8x-104)-24=0
We get rid of parentheses
-8x+8x+104-24=0
We add all the numbers together, and all the variables
80!=0
There is no solution for this equation
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