8p+9=p-12

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Solution for 8p+9=p-12 equation: 



8p+9=p-12

We move all terms to the left:

8p+9-(p-12)=0

We get rid of parentheses

8p-p+12+9=0

We add all the numbers together, and all the variables

7p+21=0

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

7p=-21

p=-21/7

p=-3

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