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4(x+3)-3(3x+9)=11x-16x-15
We move all terms to the left:
4(x+3)-3(3x+9)-(11x-16x-15)=0
We add all the numbers together, and all the variables
4(x+3)-3(3x+9)-(-5x-15)=0
We multiply parentheses
4x-9x-(-5x-15)+12-27=0
We get rid of parentheses
4x-9x+5x+15+12-27=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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