SOLUTION: I am trying to help my son with his pre algebra.....but it has been a long time...can you show me how to solve the following: 1/3(p+21)=1/6(p-9) thanks, Rick

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Question 25993: I am trying to help my son with his pre algebra.....but it has been a long time...can you show me how to solve the following:
1/3(p+21)=1/6(p-9)
thanks, Rick
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve:
%281%2F3%29%28p%2B21%29+=+%281%2F6%29%28p-9%29 Multipy both sides of the equation by 3 to clear the 1/3 fraction
%28p%2B21%29+=+%283%2F6%29%28p-9%29 Simplify.
%28p%2B21%29+=+%281%2F2%29%28p-9%29 Multiply both sides by 2 to clear the 1/2 fraction.
2%28p%2B21%29+=+p-9 Simplify. Apply the distributive property to the left side.
2p%2B42+=+p-9 Subtract p from both sides.
p%2B42+=-9 Subtract 42 from both sides.
p+=+-51