2142=21(p+15)

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Solution for 2142=21(p+15) equation: 



2142=21(p+15)

We move all terms to the left:

2142-(21(p+15))=0



We calculate terms in parentheses: -(21(p+15)), so:

21(p+15)

We multiply parentheses

21p+315

Back to the equation:

-(21p+315)



We get rid of parentheses

-21p-315+2142=0

We add all the numbers together, and all the variables

-21p+1827=0

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

-21p=-1827

p=-1827/-21

p=+87

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