3+2g=21

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Solution for 3+2g=21 equation: 



3+2g=21

We move all terms to the left:

3+2g-(21)=0

We add all the numbers together, and all the variables

2g-18=0

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

2g=18

g=18/2

g=9

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