Question

if x-2y=4 and 2xplus2y=1 find x-y​

Answer 1

Step-by-step explanation:

x+y = 4

x-2y = 1

Next, we need to get rid of x or y.

I am going to get rid of x because there are 1 xs in both equations

To get rid of it, I will subtract the bottom equation from the other.

x-x + y- -2y = 4 - 1

3y = 3

y = 1