SOLUTION: solve the system of equations 2r+2s=50 and 2r-s=17

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Question 217254: solve the system of equations 2r+2s=50 and 2r-s=17
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
2r+2s=50
2r-s=17 subtract
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3s=33
s=33/3
s=11 ans.
2r+2*11=50
2r+22=50
2r=50-22
2r=28
r=28/2
r=14 ans.
Proof:
2*14-11=17
28-11=17
17=17