3(p+1)=21

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Solution for 3(p+1)=21 equation:



3(p+1)=21
We move all terms to the left:
3(p+1)-(21)=0
We multiply parentheses
3p+3-21=0
We add all the numbers together, and all the variables
3p-18=0
We move all terms containing p to the left, all other terms to the right
3p=18
p=18/3
p=6

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