7(p-1)-p=4p-9

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Solution for 7(p-1)-p=4p-9 equation: 



7(p-1)-p=4p-9

We move all terms to the left:

7(p-1)-p-(4p-9)=0

We add all the numbers together, and all the variables

-1p+7(p-1)-(4p-9)=0

We multiply parentheses

-1p+7p-(4p-9)-7=0

We get rid of parentheses

-1p+7p-4p+9-7=0

We add all the numbers together, and all the variables

2p+2=0

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

2p=-2

p=-2/2

p=-1

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