-21-9x=31-5x

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Solution for -21-9x=31-5x equation: 



-21-9x=31-5x

We move all terms to the left:

-21-9x-(31-5x)=0

We add all the numbers together, and all the variables

-9x-(-5x+31)-21=0

We get rid of parentheses

-9x+5x-31-21=0

We add all the numbers together, and all the variables

-4x-52=0

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

-4x=52

x=52/-4

x=-13

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