12+20*x=72

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Solution for 12+20*x=72 equation: 



12+20*x=72

We move all terms to the left:

12+20*x-(72)=0

We add all the numbers together, and all the variables

20x-60=0

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

20x=60

x=60/20

x=3

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