SOLUTION: What steps do you take to solve r=p(220-a) for the variable "a"?

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Question 67525This question is from textbook INtegrated Mathematics
: What steps do you take to solve r=p(220-a) for the variable "a"? This question is from textbook INtegrated Mathematics

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
R=P(220-A)
R=200P-AP
AP=200P-R
A=(200P-R)/P