4x-3y=30

3x+2y=22

(6,-2)

(6,-2) is true for 4x-3y=30 but NOT for 3x+2y=22.

4*6=24

3 * (-2) = -6

24 - (-6) changes to 24+6 which equals 30

24+6=30.

3*6=18

2 * (-2) = -4

18 + (-4) would be changed to 18-4

18-4=14

In place of x you keep 6 and in place of y you keep - 2