50=9x+21

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Solution for 50=9x+21 equation: 



50=9x+21

We move all terms to the left:

50-(9x+21)=0

We get rid of parentheses

-9x-21+50=0

We add all the numbers together, and all the variables

-9x+29=0

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

-9x=-29

x=-29/-9

x=3+2/9

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