Question

-5x+y=-5
5x-y=5

Does this system have a solution?

Answer 1

no?

Answer 2

No, both variables cancel out

Answer 3

what about this: 3x−y=3ˏ −3x+y=3

Answer 4

Isolate y for both instances.
We get 5x-5=y.
This means the two lines lie on top of each other.
That should mean that x is all reals.

Answer 5

Same thing

Answer 6

Once again you must isolate for y. You get 3x-3=y and 3x+3. Since the slope is the same the two lines are parallel and cannot intersect at any point. No solution.

Answer 7

oh, nvm, the first one is infinitely many

Answer 8

Yeah i just realized that