Question

Q.2.
x+y=46
y-z=23
x-y+z=-7
Find the value of x ,y and z.​

Answer 1

Step-by-step explanation:

Squaring both sides

(x+y+z)

2

=x

2

+y

2

+z

2

+2(xy+yz+zx)

we can substitute given values

(x+y+z)

2

=18+(2×9)

(x+y+z)

2

=36

(x+y+z)=6

Answer 2

Answer:

x=6, y=40 AND z=27, thank you very much