SOLUTION: I need help writing out this algebra problem, 5r-s=5, -4r+5s=17 like how do I set it up?

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Question 565856: I need help writing out this algebra problem, 5r-s=5, -4r+5s=17 like how do I set it up?
Answer by ad_alta(240) About Me  (Show Source):
You can put this solution on YOUR website!
5r-s=5, so s=5r-5. Substituting into the second equation, -4r+5(5r-5)=17. That gives r=2 and s=5.