7g-1=20

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Solution for 7g-1=20 equation: 



7g-1=20

We move all terms to the left:

7g-1-(20)=0

We add all the numbers together, and all the variables

7g-21=0

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

7g=21

g=21/7

g=3

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