12x+40=4x+20

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Solution for 12x+40=4x+20 equation:



12x+40=4x+20
We move all terms to the left:
12x+40-(4x+20)=0
We get rid of parentheses
12x-4x-20+40=0
We add all the numbers together, and all the variables
8x+20=0
We move all terms containing x to the left, all other terms to the right
8x=-20
x=-20/8
x=-2+1/2

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