21=9x+5=5x

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



21=9x+5=5x

We move all terms to the left:

21-(9x+5)=0

We get rid of parentheses

-9x-5+21=0

We add all the numbers together, and all the variables

-9x+16=0

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

-9x=-16

x=-16/-9

x=1+7/9

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