7(r+5)=77

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Solution for 7(r+5)=77 equation: 



7(r+5)=77

We move all terms to the left:

7(r+5)-(77)=0

We multiply parentheses

7r+35-77=0

We add all the numbers together, and all the variables

7r-42=0

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

7r=42

r=42/7

r=6

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