Question

Which system of linear equations has no solution?
A. 2x − y = −1
2x + y = 2
B. 4x − y = 3
3x − 2y = 3
C. −2x + 4y = −16
4x − 2y = −1
D. 2x − y = −1
−2x + y = −1

Answer 1

my choice would be A. but I'm not sure.

Answer 2

2x-y=1
2x-1=y

2x+y=2
y=-2x+2

2x-1=-2x+2
4x=3
x=3/4

y=2(3/4)-1
y=
It can't be A

Answer 3

Do solving other choices.. if u can't get value of x,y ... that'll be ur answer

Answer 4

Try solving*