8p+7p=90

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Solution for 8p+7p=90 equation: 



8p+7p=90

We move all terms to the left:

8p+7p-(90)=0

We add all the numbers together, and all the variables

15p-90=0

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

15p=90

p=90/15

p=6

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