SOLUTION: 3r-4s=5 4r+3s=15 Solve by elimination

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Question 366260: 3r-4s=5
4r+3s=15
Solve by elimination
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
3r-4s=5 x3 --> 9r - 12s = 15
4r+3s=15 x4 -->16r +12s = 60
----------------------------- Add
25r = 75
r = 3
Can you finish it?