7(9+r)=147

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Solution for 7(9+r)=147 equation: 



7(9+r)=147

We move all terms to the left:

7(9+r)-(147)=0

We add all the numbers together, and all the variables

7(r+9)-147=0

We multiply parentheses

7r+63-147=0

We add all the numbers together, and all the variables

7r-84=0

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

7r=84

r=84/7

r=12

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