Simultaneous Equations

Question 1:

3x 5y = -35 3x 4y = -25
x=5 y=10

Question 2:

3x 4y = -11 5x 4y = -5
x=3 y=5

Question 3:

3x +5y = 62 2x +5y = 58
x=4 y=10

Question 4:

2x +y = 9 5x +y = 18
x=3 y=3

Question 5:

2x +y = 11 3x +y = 12
x=1 y=9

Question 6:

2x 5y = -8 2x +y = 4
x=1 y=2