(16r+7)+(4r+3)=180

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Solution for (16r+7)+(4r+3)=180 equation: 



(16r+7)+(4r+3)=180

We move all terms to the left:

(16r+7)+(4r+3)-(180)=0

We get rid of parentheses

16r+4r+7+3-180=0

We add all the numbers together, and all the variables

20r-170=0

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

20r=170

r=170/20

r=8+1/2

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