Question

I think of a number N. I add 5 to N and then multiply the answer by 3. The result is 84. What is the number N that I first thought of?

Answer 1

Solution is given in the attachment above.

Answer 2

Answer:

N = 23

Step-by-step explanation:

Step-by-step explanation:(N + 5) × 3 = 84

Step-by-step explanation:(N + 5) × 3 = 84= (N×3) + (5×3) = 84

Step-by-step explanation:(N + 5) × 3 = 84= (N×3) + (5×3) = 84= (N×3) + 15 = 84

Step-by-step explanation:(N + 5) × 3 = 84= (N×3) + (5×3) = 84= (N×3) + 15 = 84N×3 = 84 - 15

N×3 = 69

N = 69 ÷ 3

N = 23

The number N is 23