Question

matrix method.
Slove the equations by
2x- y + 3z = 1

x + y + z = 2
x- y + z =.4​

Answer 1

Step-by-step explanation:

hay friend sorry I have no time so,I given a hint to how solve this question.

2x-y+3z=1

x+y+z=2

x-y+z=4

AX=B

C=A:B

make a zero row second 2 elements

and row third all elements

and get equation

now,R2-2R2-R1

R3=2R3-R1

and any other R3=R3-R2