SOLUTION: Please show me how to solve: (100p-4000)/100p=.3

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Question 156952: Please show me how to solve:
(100p-4000)/100p=.3
Found 2 solutions by Alan3354, scott8148:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Please show me how to solve:
(100p-4000)/100p=.3
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Multiply thru by 100p
(100p-4000) = 30p
70p = 4000
p = 400/7

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
multiplying by 100p __ 100p-4000=30p __ adding 4000 __ 100p=30p+4000

subtracting 30p __ 70p=4000 __ dividing by 70 __ p=400/7