-103=7(n-4)+8n

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Solution for -103=7(n-4)+8n equation: 



-103=7(n-4)+8n

We move all terms to the left:

-103-(7(n-4)+8n)=0



We calculate terms in parentheses: -(7(n-4)+8n), so:

7(n-4)+8n

We add all the numbers together, and all the variables

8n+7(n-4)

We multiply parentheses

8n+7n-28

We add all the numbers together, and all the variables

15n-28

Back to the equation:

-(15n-28)



We get rid of parentheses

-15n+28-103=0

We add all the numbers together, and all the variables

-15n-75=0

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

-15n=75

n=75/-15

n=-5

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