-5x + 4y = 6
-2x + 3y = 1
2006-10-30 01:00:11 · 5 answers · asked by RJS88 1 in Education & Reference ➔ Homework Help
(x,y)=(-2,-1).
multiply the first equation by 3 and the second equation by 4.and then subtract the two new equations.
2006-10-30 01:10:58 · answer #1 · answered by anuja 1 · 0⤊ 0⤋
x=2, y=4
2006-10-30 09:07:29 · answer #2 · answered by pinkpanther2511 1 · 0⤊ 0⤋
-5x+4y=6........(equn. no 1) -2x+3y=1.......(Equn. np.2) Multiplying equn. no. (1) by 2 and equn.no.(2) by 5 we get -10x+8y=12 and -10x+15y=5. Subtracting ,we get -7y=7 =>y=7/-7=- 1. Now.putting this value of y in equn.no.1,we get -5x+4(-1)=6 =>-5x-4=6 => -5x=6+4 =10 => x=10/-5=-2 .Therefore x=- 2 and y=-1 ans.
2006-10-30 11:08:31 · answer #3 · answered by alpha 7 · 0⤊ 0⤋
-5x+4y=6 *2
-2x+3y=1 *5
we get, -10x+8y=12
-10x+15y=5
solving these we get: -7y=7
therefore we get y=-1
For finding x substitute y=-1 in one of the equations
-5x+4*-1=6
-5x-4=6
-5x=10
x=-2
therefore x=-2&y=-1
2006-10-30 09:18:18 · answer #4 · answered by Anonymous · 0⤊ 0⤋
X = -2 AND Y= -1 i.e (-2, -1)
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2006-10-30 09:07:42 · answer #5 · answered by archana 2 · 0⤊ 0⤋