5r+8+9r=180

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Solution for 5r+8+9r=180 equation: 



5r+8+9r=180

We move all terms to the left:

5r+8+9r-(180)=0

We add all the numbers together, and all the variables

14r-172=0

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

14r=172

r=172/14

r=12+2/7

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