-7=2+5p+4p

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Solution for -7=2+5p+4p equation: 



-7=2+5p+4p

We move all terms to the left:

-7-(2+5p+4p)=0

We add all the numbers together, and all the variables

-(9p+2)-7=0

We get rid of parentheses

-9p-2-7=0

We add all the numbers together, and all the variables

-9p-9=0

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

-9p=9

p=9/-9

p=-1

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