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3(4x-8)=-30
We move all terms to the left:
3(4x-8)-(-30)=0
We add all the numbers together, and all the variables
3(4x-8)+30=0
We multiply parentheses
12x-24+30=0
We add all the numbers together, and all the variables
12x+6=0
We move all terms containing x to the left, all other terms to the right
12x=-6
x=-6/12
x=-1/2
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