Question

What is the value of the expression 9+4n-1 when n = 3

Answer 1

20

Explanation:

Evaluate by substituting n = 3 into the expression

9 + (4 × 3) - 1 ← evaluate the multiplication before adding/ subtracting

= 9 + 12 - 1

= 21 - 1

= 20

Answer 2

20 is the correct answer.