Simultaneous Equations

Question 1:

8x y = 49 8x +2y = 34
x=5.5 y=-5

Question 2:

x 2y = 8 5x +7y = -113
x=-10 y=-9

Question 3:

x 6y = 28 4x +2y = -5
x=1 y=-4.5

Question 4:

4x 5y = 21 8x 2y = -14
x=-3.5 y=-7

Question 5:

6x 8y = 24 5x +4y = 68
x=10 y=4.5

Question 6:

5x y = 2 3x 8y = -21
x=1 y=3