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anonymous
 5 years ago
Solve the system x  y = 3 and 3x  8y = 9. What is the value of y?
anonymous
 5 years ago
Solve the system x  y = 3 and 3x  8y = 9. What is the value of y?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Answer choices available: A. 3 B. 0 C. 6 D. 2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0From the first equation, we can rearrange to get x: x  y = 3 x = y + 3 Plug this into the second equation and we get: 3(y + 3) + 8y = 9 3y + 9 + 8y = 9 11y = 0 y = 0 Then substitute y back in the original equation: x  y = 3 x  0 = 3 x = 3 A is your answer.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Thank you SirSushii! :)

mathmate
 5 years ago
Best ResponseYou've already chosen the best response.2What is the value of y? 3 times the first equation subtract the second gives 3x  3y = 9 and 3x  8y = 9 Subtracting, 5y=0 => y=0 B is the answer for y.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Oh dang! Well, it is the thought that counts! :) Thanks mathmate, and I still thank you SirSushii for trying to help me! Thanks both of you! :)
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