8+12+x=3x

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Solution for 8+12+x=3x equation:



8+12+x=3x
We move all terms to the left:
8+12+x-(3x)=0
We add all the numbers together, and all the variables
-2x+20=0
We move all terms containing x to the left, all other terms to the right
-2x=-20
x=-20/-2
x=+10

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