15=-3(2q+1)

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Solution for 15=-3(2q+1) equation: 



15=-3(2q+1)

We move all terms to the left:

15-(-3(2q+1))=0



We calculate terms in parentheses: -(-3(2q+1)), so:

-3(2q+1)

We multiply parentheses

-6q-3

Back to the equation:

-(-6q-3)



We get rid of parentheses

6q+3+15=0

We add all the numbers together, and all the variables

6q+18=0

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

6q=-18

q=-18/6

q=-3

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