-3x+21=60

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Solution for -3x+21=60 equation: 



-3x+21=60

We move all terms to the left:

-3x+21-(60)=0

We add all the numbers together, and all the variables

-3x-39=0

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

-3x=39

x=39/-3

x=-13

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