Question

Evaluate 5(x-1)-2 when x=3

Answer 1

8

solution,

X=3

`5(x - 1) - 2 \\ putting \: the \: value \: of \: x \\ = 5(3 - 1) - 2 \\ = 5 * 2 - 2 \\ = 10 - 2 \\ = 8`

Answer 2

8

Explanation:

5(x-1)-2

Put x as 3 and evaluate.

5(3-1)-2

5(2)-2

10-2

= 8