3(2-x)+12x=42

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Solution for 3(2-x)+12x=42 equation:



3(2-x)+12x=42
We move all terms to the left:
3(2-x)+12x-(42)=0
We add all the numbers together, and all the variables
3(-1x+2)+12x-42=0
We add all the numbers together, and all the variables
12x+3(-1x+2)-42=0
We multiply parentheses
12x-3x+6-42=0
We add all the numbers together, and all the variables
9x-36=0
We move all terms containing x to the left, all other terms to the right
9x=36
x=36/9
x=4

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