Simultaneous Equations

Question 1:

x 3y = 1 x +2y = 6
x=4 y=1

Question 2:

3x 5y = -19 3x y = 1
x=2 y=5

Question 3:

x +2y = 7 5x +2y = 19
x=3 y=2

Question 4:

3x +3y = 12 3x +y = 8
x=2 y=2

Question 5:

2x y = 9 2x 3y = 3
x=6 y=3

Question 6:

4x 2y = -12 4x +2y = 28
x=2 y=10