2007-01-03 08:02:19 · 5 answers · asked by Bill B 1 in Science & Mathematics ➔ Mathematics
Multiply the first equation by 2 and then add that to the second equation.
-6x + 2y = 14
6x - 2y = -14
0 = 0 (This is true).
That means the equations are exactly the same (one is on top of the other).
The answer is all real numbers.
2007-01-03 08:05:14 · answer #1 · answered by MsMath 7 · 1⤊ 0⤋
3x-y=-a million ------a million 4x+2y=22------2 multiply first equation through two turns into 6x-2y=-2 4x+2y=22 -2x and 2x cancels out 6x+4x=10x -2+22=20 10x=20x x=2 putting x=2 in equation a million 3(2)-y=-a million 6-y=-a million 6+a million=y 7=y subsequently x=2 and y=7
2016-11-26 01:10:50 · answer #2 · answered by ? 4 · 0⤊ 0⤋
double the top equation and add it to the bottom....... 0 = 0
all real numbers will work .
2007-01-03 08:14:04 · answer #3 · answered by Ray 5 · 0⤊ 0⤋
Why are we doing your homework?
2007-01-03 08:11:04 · answer #4 · answered by Apathy 2 · 0⤊ 0⤋
oops!
2007-01-03 08:39:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋