7(5+3n)=77

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Solution for 7(5+3n)=77 equation: 



7(5+3n)=77

We move all terms to the left:

7(5+3n)-(77)=0

We add all the numbers together, and all the variables

7(3n+5)-77=0

We multiply parentheses

21n+35-77=0

We add all the numbers together, and all the variables

21n-42=0

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

21n=42

n=42/21

n=2

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