Question

The pair of coincident lines in the following are:
a)x-2y=0
3x+4y=20
b)2x+3y=9
4x+6y=18
c)x+2y=4
2x+4y=12
d)x+y=8
x-y=4​

Answer 1

Step-by-step explanation:

please see the attached picture dear