Simultaneous Equations

Question 1:

2x 4y = -10 5x +y = 30
x=5 y=5

Question 2:

7x y = 60 2x +8y = 71
x=9.5 y=6.5

Question 3:

6x +4y = 19 5x +3y = 17
x=5.5 y=-3.5

Question 4:

3x +y = -22 x +3y = -30
x=-4.5 y=-8.5

Question 5:

6x 8y = -5 3x +7y = 58
x=6.5 y=5.5

Question 6:

8x 4y = 42 5x 4y = 30
x=4 y=-2.5