7(2n+1)=-21

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Solution for 7(2n+1)=-21 equation: 



7(2n+1)=-21

We move all terms to the left:

7(2n+1)-(-21)=0

We add all the numbers together, and all the variables

7(2n+1)+21=0

We multiply parentheses

14n+7+21=0

We add all the numbers together, and all the variables

14n+28=0

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

14n=-28

n=-28/14

n=-2

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