Question

Solve 2x+y+z=5, 3x-y-z=5,2x+2y-z=3

Answer 1

Answer:

2x+y+z=5

3x-y-z=5

using elimination methods

5x=10

x=2

put x in equations

4+y+z=5

y+z=1 (1) eq.

4+2y-z=3

2y-z=-1 (2)eq.

using elimination methods

3y=0

y=0

z=1