7x-17=21

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Solution for 7x-17=21 equation: 



7x-17=21

We move all terms to the left:

7x-17-(21)=0

We add all the numbers together, and all the variables

7x-38=0

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

7x=38

x=38/7

x=5+3/7

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