7x-5=-2x+21

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Solution for 7x-5=-2x+21 equation: 



7x-5=-2x+21

We move all terms to the left:

7x-5-(-2x+21)=0

We get rid of parentheses

7x+2x-21-5=0

We add all the numbers together, and all the variables

9x-26=0

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

9x=26

x=26/9

x=2+8/9

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