SOLUTION: 13n+0r=117 & 150n-90r=1,800 This has to be solved by subsition method

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Question 280539: 13n+0r=117 & 150n-90r=1,800
This has to be solved by subsition method
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
What is 'subsition"?
Are you sure the first equation is 13n+0r=117 ?
that would make 13n=117 and n=9
150*9-90r=1800
r=-5