P=2r+7

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Solution for P=2r+7 equation: 



=2P+7

We move all terms to the left:

-(2P+7)=0

We get rid of parentheses

-2P-7=0

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

-2P=7

P=7/-2

P=-3+1/2

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