3x – y = 1
3x - y=2
2006-10-27 09:29:28 · 7 answers · asked by shy l 1 in Education & Reference ➔ Homework Help
You can't
2 = 3x - y = 1
as 2 is not equal to 1 this is impossible
2006-10-27 09:33:03 · answer #1 · answered by Philip W 7 · 0⤊ 0⤋
the system of equations (the two lines) are parallel. Use elimination:
3x-y=1
3x-y=2 (-x)
3x-y=1
-3x+y=2
(add)
0x+0y=3 ... therefore the lines are parallel.
2006-10-27 16:58:32 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Add the like terms together. But first you need to multiply one equation by a number so that adding will cancel out one term.
I suggest multiplying one of them by -1. So you can get:
3x - y = 1
-3x + y = -2
When you add them up, you get:
0x + 0y = -1
0 = 1
This is impossible, so the system of equations has no solution.
You can see this graphically. You will draw two parallel lines if you graph these two equations out. They will never intersect.
2006-10-27 16:31:53 · answer #3 · answered by Rev Kev 5 · 0⤊ 1⤋
FIRST, there is no solution to this
if there was, you'd work it out like this:
(1).............3x-y=1
(2).............3x-y=2
(1)x-1........-3x+y= -1
add the 2nd 2..... 0=1
2006-10-27 16:40:40 · answer #4 · answered by sarahstar111 2 · 0⤊ 0⤋
3x+y=1
3x-y=2
_______
6x=3
x=.5
2006-10-27 16:35:45 · answer #5 · answered by RLP 3 · 0⤊ 0⤋
No solutions
2006-10-27 17:34:33 · answer #6 · answered by Anonymous · 0⤊ 0⤋
what you do is
3x-y=1
+y=1y
3x=1y
and if you wanna go farther divide by the one and it will be 1xy
2006-10-27 16:32:34 · answer #7 · answered by Anonymous · 0⤊ 2⤋