p-3(5-4p)=-21+7p

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Solution for p-3(5-4p)=-21+7p equation: 



p-3(5-4p)=-21+7p

We move all terms to the left:

p-3(5-4p)-(-21+7p)=0

We add all the numbers together, and all the variables

p-3(-4p+5)-(7p-21)=0

We multiply parentheses

p+12p-(7p-21)-15=0

We get rid of parentheses

p+12p-7p+21-15=0

We add all the numbers together, and all the variables

6p+6=0

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

6p=-6

p=-6/6

p=-1

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