Question

Amelie solves the following system of equations.

mc009-1.jpg

Which values of x and y satisfy this system of equations?
x = 0, y = 20
x = 5, y = 15
x = 10, y = 0
x = 15, y = 5

Answer 1

I can't see the image file. Could you either paste the two equations here or type them out (for example "2x + y = 20" and "x − y = 10")?

If you prefer to check the multiple choice answers yourself: for each candidate (x,y) plug the x and y into both equations — the correct pair will make both equations true. If you post the equations I’ll check them and give the correct pair.