Q9(ii) If
x+2y -y 3x 4
= -4 3 6 4
,find the values of x and y
x+2y | -y |
3x | 4 |
-4 | 3 |
6 | 4 |
Solution

x+2y | -y |
3x | 4 |
-4 | 3 |
6 | 4 |