Mrs. Waight graphed the following system of linear equations:
3x + y= -1
2x - y = -4

Which of the following is a solution of the system of equations?
A. (-1, 2)
B. (1, -2)
C. (2, -1)

Question

Mrs. Waight graphed the following system of linear equations:
3x + y= -1
2x - y = -4

Which of the following is a solution of the system of equations?
A. (-1, 2)
B. (1, -2)
C. (2, -1)

anonymous · Answer

http://www.icoreonline.com/content/TLNAM8UB/6087002/168TN_TG_10.png

anonymous · Answer

A is my choice.

eric_d · Answer

Do you know how to find value of x

geerky42 · Answer

A is correct.

eric_d · Answer

3x+y=-1
      y=-1-3x

2x-y=-4
2x+4=y
       y=2x+4
-1-3x=2x+4
-1-4=2x+3x
-5=5x
x=-1
Yes, it is A