Question

MATRIX EQUATION

find the missing variable and it’s value

Answer 1

Here’s the answer:
X= 2, Y= 1, Z= 3

Answer 2

Answer:

firstly we will equate the whole matrix like

2=2................(1)

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

8y+13=21..........(3)

7x-2=12.............(4)

X+y=z.............(5)

-3=-3...............(6)

Step-by-step explanation:

first we will find value of y

solving equation 3 we get

8y+13=21

8y=13-21

y=-8/8

y=-1

now we will find value of x

solving equation 4

7x-2=12

7x=14

X=14/7

X=2

putting values of x and y in equation 5

X+y=z

2+(-1)=z

1=z or z=1

putting value of z in equation 2

2-z=-1

2-1=-1

1=-1

now put these values in matrix and you will find the two matrix will be equal