-21+3x=9+5x

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Solution for -21+3x=9+5x equation: 



-21+3x=9+5x

We move all terms to the left:

-21+3x-(9+5x)=0

We add all the numbers together, and all the variables

3x-(5x+9)-21=0

We get rid of parentheses

3x-5x-9-21=0

We add all the numbers together, and all the variables

-2x-30=0

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

-2x=30

x=30/-2

x=-15

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