21(p+8)=840

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Solution for 21(p+8)=840 equation: 



21(p+8)=840

We move all terms to the left:

21(p+8)-(840)=0

We multiply parentheses

21p+168-840=0

We add all the numbers together, and all the variables

21p-672=0

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

21p=672

p=672/21

p=32

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