6q+21=15

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Solution for 6q+21=15 equation: 



6q+21=15

We move all terms to the left:

6q+21-(15)=0

We add all the numbers together, and all the variables

6q+6=0

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

6q=-6

q=-6/6

q=-1

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