Simultaneous Equations

Question 1:

5x +4y = 42 5x 5y = 15
x=6 y=3

Question 2:

5x 2y = 5 2x 2y = -10
x=5 y=10

Question 3:

3x 2y = 23 4x 2y = 32
x=9 y=2

Question 4:

4x 4y = -8 3x 4y = -14
x=6 y=8

Question 5:

x +y = 14 x 3y = -6
x=9 y=5

Question 6:

4x +2y = 52 3x +2y = 42
x=10 y=6