Q. Find values of a and b such that (2, -1) is a solution of the system. {ax - by = 12 {bx + ay = -1 Please explain how you got to the answer as I don't even have the slightest clue how to do this one. Thank you!
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Originally Posted by Sasurai Q. Find values of a and b such that (2, -1) is a solution of the system. {ax - by = 12 {bx + ay = -1 Please explain how you got to the answer as I don't even have the slightest clue how to do this one. Thank you! If (2,-1) is a solution to the system, then x=2 and y=-1. Subsitute these values in your question, you have: $\displaystyle 2a+b=12$ $\displaystyle 2b-a = -1$ Can you find a and b now?
Ah! Got it now. Thank you very much sir. Can't believe it was that simple, haha. May I ask one more question?
Originally Posted by Sasurai Ah! Got it now. Thank you very much sir. Can't believe it was that simple, haha. May I ask one more question? If its related to the same question, post it here. If its a different Math question, start a new thread! If not me, then someone else might help you!
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