Question

What is the solution to the system of equations
x+y=2
x-y=4

Answer 1

Add both equation. you will get value of x
the substitute it in any eq. for y

Answer 2

Add both equations

(x+y)+(x-y) = 2 + 4
x + y + x - y = 6
2x = 6
x = 3

Now substitute x=3 in either of the given equations

In x-y = 4
3 - y =4
y =3-4
y =-1

Answer 3

yea das tight x=3 y=-1

Answer 4

thank you