Question

6) Solve the following equation by using cr
x+y+z=6, x-y+z=2, x+2y -z=2​

Answer 1

Answer:

x=1 , y=2 , z=3

Step-by-step explanation:

(x+y+z)-(x-y+z) = 6-2

=> 2y = 4

=> y = 2

.'. x+y+z=6 => x+2+z=6 => x+z=4

.'. x+2y-z=2 => x+4-z=2 => x-z= -2

.'. (x+z)+(x-z)= 4-2 => 2x = 2. => x = 1

.'. x+z= 4. => 1+z=4. => z= 3