x-60=3x+21

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Solution for x-60=3x+21 equation: 



x-60=3x+21

We move all terms to the left:

x-60-(3x+21)=0

We get rid of parentheses

x-3x-21-60=0

We add all the numbers together, and all the variables

-2x-81=0

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

-2x=81

x=81/-2

x=-40+1/2

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