9x-19=21+x

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Solution for 9x-19=21+x equation: 



9x-19=21+x

We move all terms to the left:

9x-19-(21+x)=0

We add all the numbers together, and all the variables

9x-(x+21)-19=0

We get rid of parentheses

9x-x-21-19=0

We add all the numbers together, and all the variables

8x-40=0

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

8x=40

x=40/8

x=5

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