Question

Substitute 9 for x and evaluate the expression below.

(x - 5)-1

OA. 15.
OB. 5
OC. 3
OD. 13

Answer 1

Option (c) 3.

Explanation:

The given expression is,
`{ \pink{ \sf{(x - 5) - 1}}} \: { \to} \: { \red{ \tt{ {eq}^(n) (1)}}}`

x = 9 (given).

Substitute the value of x in Eqⁿ (1)

`{ \pink{ \sf{(9 - 5) - 1}}}`

`{ \pink{ \sf{4 - 1}}}`

`{ = { \boxed{ \blue{ \sf{3}}}}}`