9x+21=11x

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Solution for 9x+21=11x equation: 



9x+21=11x

We move all terms to the left:

9x+21-(11x)=0

We add all the numbers together, and all the variables

-2x+21=0

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

-2x=-21

x=-21/-2

x=10+1/2

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