2007-11-04 15:03:28 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
2x = x - 3
x = - 3
y = - 6
2007-11-04 19:05:30 · answer #1 · answered by Como 7 · 0⤊ 1⤋
X= -3, Y= -6
2007-11-04 15:07:13 · answer #2 · answered by Mr N 1 · 0⤊ 0⤋
set the equations equivalent to one yet another because they both equivalent y (we are assuming we are on the y the position they're an analogous) x - 3 = -2x - 3 upload 2x to both area 3x -3 = -3 upload 3 to both area 3x=0 so x=0 for the different issues, merely replace the variable with the given fee and compute (m-4)-5 = (6-4)-5 = 2-5= -3
2016-10-23 10:15:16 · answer #3 · answered by ? 4 · 0⤊ 0⤋
To solve
y=x-3, y=2x,
substitute y=x-3 in the other equation
x-3=2x
x=-3
then substitute, x=-3 in the first equation
y=-3-3
y=-6
finally check:
plug (-3,-6) into both equations
-6=-3-3 and -6=2*-3
2007-11-04 15:11:00 · answer #4 · answered by john s 3 · 0⤊ 0⤋
Use equation y = 2x , and substitute for y back in the first equation
y = x - 3
==> 2x = x - 3
==> 2x - x = x - 3 - x
==> x = -3
Now use this to find y in equation 2
y = 2x
==> y = 2 (-3)
==> y = -6
There you have it
x = -3 and y = -6
2007-11-04 15:08:02 · answer #5 · answered by Jeƒƒ Lebowski 6 · 0⤊ 0⤋
2x = x - 3
x = - 3
y = -3 - 3
y = -6
Check:
-6 = -3 - 3 and -6 = 2(-3)
-6 = -6 and -6 = -6
2007-11-04 15:07:49 · answer #6 · answered by Ms. Exxclusive 5 · 0⤊ 0⤋
substitution method.
given in the problem are y= x-3 and y=2x
x-3 = 2x
x= -3, y= -6
2007-11-04 15:11:41 · answer #7 · answered by Andy L 2 · 0⤊ 0⤋
2x = x -3
x = -3
y = -3 - 3
y= -6
2007-11-04 15:08:02 · answer #8 · answered by Aeons 2 · 0⤊ 0⤋
2x = x - 3
2x - x = -3
x = -3
y = 2x
y=2(-3)
y=-6
2007-11-04 15:09:08 · answer #9 · answered by ferdie 2 · 0⤊ 1⤋
use substituion. x-3=2x.subtract x from both sides to get -3=x.
2007-11-04 15:06:55 · answer #10 · answered by Mother Pucker 3 · 0⤊ 0⤋