2x+21=9x-14

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Solution for 2x+21=9x-14 equation: 



2x+21=9x-14

We move all terms to the left:

2x+21-(9x-14)=0

We get rid of parentheses

2x-9x+14+21=0

We add all the numbers together, and all the variables

-7x+35=0

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

-7x=-35

x=-35/-7

x=+5

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