3x+12-20=18

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Solution for 3x+12-20=18 equation: 



3x+12-20=18

We move all terms to the left:

3x+12-20-(18)=0

We add all the numbers together, and all the variables

3x-26=0

We move all terms containing x to the left, all other terms to the right

3x=26

x=26/3

x=8+2/3

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