7(r+6)=42

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Solution for 7(r+6)=42 equation: 



7(r+6)=42

We move all terms to the left:

7(r+6)-(42)=0

We multiply parentheses

7r+42-42=0

We add all the numbers together, and all the variables

7r=0

r=0/7

r=0

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