Question

5. Solve the following equations by using
Cramer's Rule :
x + 2y + 3z = 6
2x + y + z = 4
x + y + 2z = 4​

Answer 1

Answer:

1) x + 2y + 3z = 6

= x + 5yz = 6

= x = 6 - 5yz

= x =(1)yz

2) 2x + y + z = 4

=2x + 2yz= 4

=2x = 4-2yz

= 2x = 2yz

= x = 2yz

2

= x = yz

3) x + y + 2z = 4

= 2xy + 2z = 4

= 2xy = 4-2z

= 2xy = 2z

= xy =2z

2

= xy = z