-128=4(7p-7)-8p

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Solution for -128=4(7p-7)-8p equation: 



-128=4(7p-7)-8p

We move all terms to the left:

-128-(4(7p-7)-8p)=0



We calculate terms in parentheses: -(4(7p-7)-8p), so:

4(7p-7)-8p

We add all the numbers together, and all the variables

-8p+4(7p-7)

We multiply parentheses

-8p+28p-28

We add all the numbers together, and all the variables

20p-28

Back to the equation:

-(20p-28)



We get rid of parentheses

-20p+28-128=0

We add all the numbers together, and all the variables

-20p-100=0

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

-20p=100

p=100/-20

p=-5

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