Question

Find the value of 9k- 5 at k = 3 *

Answer 1

Answer:

9k-5

9(3)-5

9×3-5

27-5

22

Answer 2

$9k - 5 \\ where \: k \: = 3 \\ \\ put \: 3 \: instead \: of \: k \\ \\ 9 \times 3 - 5 \\ \\ 27 - 5 \\ \\ = 22 \\ \\ value \: of \: k \: \: is \: 22 \\ \\ k = 22$