Question

Find x,y,z using cramers rule, if x-y+z=4, 2x+y-3z=0 and x+y+z=2

Answer 1

Answer:

if x-y+z=4, 2x+y-3z=0 and x+y+z=2

x =2 , y = -1 , z = 1

Step-by-step explanation:

x-y+z=4     Eq1

2x+y-3z=0  Eq2

x+y+z=2     Eq3

Adding eq 1 & Eq 3

2x + 2z = 6

x + z = 3    Eq 4

Adding eq 1 & eq 2

3x -2z = 4   eq 5

2 * eq 4 + eq 5

5x = 10

=> x = 2

2 + z = 3

=> z = 1

2 + y + 1 = 2

=> y = -1