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-0.4x-6(3x-2)=42
We move all terms to the left:
-0.4x-6(3x-2)-(42)=0
We multiply parentheses
-0.4x-18x+12-42=0
We add all the numbers together, and all the variables
-18.4x-30=0
We move all terms containing x to the left, all other terms to the right
-18.4x=30
x=30/-18.4
x=-1+7.25/11.5
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