1.

Ii] (K-2)x+(k-1)y=17; (k-1)x+(k-2)y=18; x+y=5 *O 7O 5O 10O 50​

Answer»

=

K+2

3

=

3k

7

⇒

k−1

2

=

k+2

3

⇒2k+4=3k−3

⇒k=7

HENCE, the VALUE of k is 7.


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