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-3x+6(5x-7)=-12
We move all terms to the left:
-3x+6(5x-7)-(-12)=0
We add all the numbers together, and all the variables
-3x+6(5x-7)+12=0
We multiply parentheses
-3x+30x-42+12=0
We add all the numbers together, and all the variables
27x-30=0
We move all terms containing x to the left, all other terms to the right
27x=30
x=30/27
x=1+1/9
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