7(7+8n)=-399

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Solution for 7(7+8n)=-399 equation: 



7(7+8n)=-399

We move all terms to the left:

7(7+8n)-(-399)=0

We add all the numbers together, and all the variables

7(8n+7)-(-399)=0

We add all the numbers together, and all the variables

7(8n+7)+399=0

We multiply parentheses

56n+49+399=0

We add all the numbers together, and all the variables

56n+448=0

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

56n=-448

n=-448/56

n=-8

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