3p+9=13+7p

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Solution for 3p+9=13+7p equation: 



3p+9=13+7p

We move all terms to the left:

3p+9-(13+7p)=0

We add all the numbers together, and all the variables

3p-(7p+13)+9=0

We get rid of parentheses

3p-7p-13+9=0

We add all the numbers together, and all the variables

-4p-4=0

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

-4p=4

p=4/-4

p=-1

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