-3(1+7p)=123

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Solution for -3(1+7p)=123 equation: 



-3(1+7p)=123

We move all terms to the left:

-3(1+7p)-(123)=0

We add all the numbers together, and all the variables

-3(7p+1)-123=0

We multiply parentheses

-21p-3-123=0

We add all the numbers together, and all the variables

-21p-126=0

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

-21p=126

p=126/-21

p=-6

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