Simultaneous Equations

Question 1:

x +4y = 43 x y = -7
x=3 y=10

Question 2:

4x +3y = 28 4x 2y = -12
x=1 y=8

Question 3:

5x y = 20 2x y = 5
x=5 y=5

Question 4:

4x y = 37 4x +y = 43
x=10 y=3

Question 5:

x 2y = -10 2x 2y = -8
x=2 y=6

Question 6:

x 4y = -32 x 3y = -22
x=8 y=10