2x+21=5x-63

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Solution for 2x+21=5x-63 equation: 



2x+21=5x-63

We move all terms to the left:

2x+21-(5x-63)=0

We get rid of parentheses

2x-5x+63+21=0

We add all the numbers together, and all the variables

-3x+84=0

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

-3x=-84

x=-84/-3

x=+28

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