p+42=3p

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Solution for p+42=3p equation: 



p+42=3p

We move all terms to the left:

p+42-(3p)=0

We add all the numbers together, and all the variables

-2p+42=0

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

-2p=-42

p=-42/-2

p=+21

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