9x+5=21+x

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



9x+5=21+x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

9x-x-21+5=0

We add all the numbers together, and all the variables

8x-16=0

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

8x=16

x=16/8

x=2

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