Simultaneous Equations

Question 1:

3x 3y = -6 3x 4y = -13
x=5 y=7

Question 2:

2x +3y = 27 2x 4y = 6
x=9 y=3

Question 3:

x +5y = 32 5x +5y = 40
x=2 y=6

Question 4:

x +y = 7 3x +y = 17
x=5 y=2

Question 5:

x +3y = 15 x +4y = 17
x=9 y=2

Question 6:

4x 5y = 3 4x +3y = 43
x=7 y=5