120=3p+12(4-p)

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Solution for 120=3p+12(4-p) equation: 



120=3p+12(4-p)

We move all terms to the left:

120-(3p+12(4-p))=0

We add all the numbers together, and all the variables

-(3p+12(-1p+4))+120=0



We calculate terms in parentheses: -(3p+12(-1p+4)), so:

3p+12(-1p+4)

We multiply parentheses

3p-12p+48

We add all the numbers together, and all the variables

-9p+48

Back to the equation:

-(-9p+48)



We get rid of parentheses

9p-48+120=0

We add all the numbers together, and all the variables

9p+72=0

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

9p=-72

p=-72/9

p=-8

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