Question

2x-y=-7
4x-y=-4
(–1.5, 4)
(1.5, 10)
(4, –1.5)
(–1.5, –2)

Answer 1

(-1.5, 4)

Answer 2

subtract first from second

4x-y=-4
2x-y=-7
---------
2x 0 = 3
x=3/2

4(3/2) -y=-4
2*3 -y=-4
6-y=-4
6+4=y
y=10

x=3/2
y=10

Answer 3

second is right (1,5 ,10)

Answer 4

x=3/2 =1,5