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anonymous
 5 years ago
5X +3Y = 2 and 6X and 4Y=9 I can not get them to equal
anonymous
 5 years ago
5X +3Y = 2 and 6X and 4Y=9 I can not get them to equal

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but for realz i don't understand what you're trying to say.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0just the "and 6X and"

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I have to put numbers in the x and y to get them to equal 2 for the first prob and 9 on the second prob thanks

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I should have put in a + sign for and sorry

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0igggghhht so you got: 5x + 3y = 2 and 6x + 4y = 9 well one thing you can do is to get rid of one coefficient, let's say the y one. mutliply the first equation by 4, and the second one by 3, then substract them: 20x + 12y = 8  18x + 12y = 27 = 2x = 19 x = 19/2 plug that in ant of the initial equations to find y

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I understand what you did here..thank you very much. My student is saying thank you also. How do you do it for Y? Plug in the X answer for Y and solve?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0exactly, you can plug it in the first or second initial equation and it should give you the same answer

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0we get 190 =8 ..does that make sense? 23.75 = y ..does that sound right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0we get two different answers, 23.75 and 171

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oops she got 23.75 for first equation and 6.3 for the second equation

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok well if we have x = 19/2: 5x + 3y =2 95/2 + 3y = 2 y = (2 + 95/2)/3 = 16.5 6x + 4y = 9 57 + 4y = 9 4y = 66 y = 66/4 = 16.5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You are really good. Mariah says thanks and what about 2x +5y =16 and 4x +7y=23
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