How many solutions does this linear system have?

y=2x-5

-8x - 4y=-20

one solution: (-2.5, 0)

one solution: (25,0)

no solution

infinite number of solutions

The solution is (0.4; -4.2). I'm not sure since my solution is none of your alternatives, but I don't think I have made any mistakes.

Step-by-step explanation:

Replace the y at the second eq.

-8x-4 (2x-5) = -20

-16x+20=-20

-16x=-40

x=0.4

Therefore y equals:

2*0.4-5=-4.2

I think the answer is no solution