7r-5=6r+4=180

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Solution for 7r-5=6r+4=180 equation: 



7r-5=6r+4=180

We move all terms to the left:

7r-5-(6r+4)=0

We get rid of parentheses

7r-6r-4-5=0

We add all the numbers together, and all the variables

r-9=0

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

r=9

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