IDNLearn.com is your go-to platform for finding reliable answers quickly. Our experts are available to provide in-depth and trustworthy answers to any questions you may have.
Answer: Most of them cross each other once so I am not sure which one is the answer (sorry)
Step-by-step explanation:
x+y=7 is parallel to 3x+3y=3 and -6x-6y=3
3x+y=-1 and 6x+2y=-2 have infinite solutions togther (both are on top of each other)
The rest of the ways cross each other once