3(r+11)=45

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Solution for 3(r+11)=45 equation: 



3(r+11)=45

We move all terms to the left:

3(r+11)-(45)=0

We multiply parentheses

3r+33-45=0

We add all the numbers together, and all the variables

3r-12=0

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

3r=12

r=12/3

r=4

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