1) x-y=5 2) 3x-y=1 3) 3x+y=-1
x+y=3 3x-y=2 9x+3y=-3
2007-01-27 08:45:54 · 3 answers · asked by CelticMoonGoddess 2 in Science & Mathematics ➔ Mathematics
1) x-y=5 2) 3x-y=1
x+y=3 3x-y=2
2) 3x-Y=1
3X-Y=2
3) 3x+y=-1
9x+3y=-3
2007-01-27 08:49:38 · update #1
1) This has one set which is x= 4 and y = -1
2) This has no solution. This says 2=1 which is never true.
3) this has an infinite set of solutions because they are the same line.
2007-01-27 08:55:51 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋
1
2007-01-27 16:50:47 · answer #2 · answered by Kurt 1 · 0⤊ 0⤋
i dont have a calculator in front of me now so i cant tell you th eanswer....
but you find it by entering all the equations into i graphing calculator at the same time....however many intersections there are is the number of solutions.
2007-01-27 16:51:09 · answer #3 · answered by italien_chick 2 · 0⤊ 0⤋