Simultaneous Equations

Question 1:

5x +y = 49 5x 5y = -5
x=8 y=9

Question 2:

3x 5y = -39 5x 5y = -35
x=2 y=9

Question 3:

5x 4y = -25 x 4y = -37
x=3 y=10

Question 4:

5x +y = 29 5x 4y = 9
x=5 y=4

Question 5:

2x +4y = 32 3x +4y = 34
x=2 y=7

Question 6:

4x +5y = 65 2x +5y = 45
x=10 y=5