Given the system of equations, match the following items. 2x - y = 0 x + y= -3
Question
Updated 3/1/2015 6:50:30 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [3/1/2015 6:49:04 AM]
Original conversation
User: Given the system of equations, match the following items. 2x - y = 0 x + y= -3

Weegy: The solution set for 2x - y = -3, x + y = 0 is {x = -1, y = 1)

(x + y = 0) * (-2) =
-2x - 2y = 0;
(2x - y = -3) + (-2x - 2y = 0) =
-3y = -3;
y = -3/-3; y = 1;
x + 1 = 0;
x = -1

User: Solve (x + 5 < 4) (x - 3 > -6). {x | -3 < x < -1} {x | x < -3 or x > -1} {all real numbers}

Question
Updated 3/1/2015 6:50:30 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [3/1/2015 6:49:04 AM]
Rating
3
2x - y = 0
x + y = -3
adding up equations the result is:
3x = -3
x = -3/3 = -1
y = 2x = 2(-1) = -2
The solution set for the system 2x - y = 0 x + y= -3 is (-1, -2)
Confirmed by jeifunk [3/1/2015 7:29:58 AM]
3
(x + 5 < 4)
x < 4 - 5
x < -1;
(x - 3 > -6)
x > -6 + 3
x > -3
The solution for the inequality system (x + 5 < 4) (x - 3 > -6) is {x | -3 < x < -1}
Confirmed by jeifunk [3/1/2015 7:32:03 AM]

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