2x+5=9x+21

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Solution for 2x+5=9x+21 equation: 



2x+5=9x+21

We move all terms to the left:

2x+5-(9x+21)=0

We get rid of parentheses

2x-9x-21+5=0

We add all the numbers together, and all the variables

-7x-16=0

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

-7x=16

x=16/-7

x=-2+2/7

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