6r+7+3r-16=180

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Solution for 6r+7+3r-16=180 equation: 



6r+7+3r-16=180

We move all terms to the left:

6r+7+3r-16-(180)=0

We add all the numbers together, and all the variables

9r-189=0

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

9r=189

r=189/9

r=21

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