5x-7=2x+21

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



5x-7=2x+21

We move all terms to the left:

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

We get rid of parentheses

5x-2x-21-7=0

We add all the numbers together, and all the variables

3x-28=0

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

3x=28

x=28/3

x=9+1/3

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