5(3+3r)+2=77

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Solution for 5(3+3r)+2=77 equation: 



5(3+3r)+2=77

We move all terms to the left:

5(3+3r)+2-(77)=0

We add all the numbers together, and all the variables

5(3r+3)+2-77=0

We add all the numbers together, and all the variables

5(3r+3)-75=0

We multiply parentheses

15r+15-75=0

We add all the numbers together, and all the variables

15r-60=0

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

15r=60

r=60/15

r=4

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