Question

What is that one third of which added to 5 gives 8

Answer 1

Here is your answer. I hope this helps you...

Answer 2

$\frac{x}{3} + 5 = 8 \\ \frac{x}{3} = 8 - 5 \\ so \frac{x}{3} = 3 \\ x = 3 \times 3 = 9$
so your answer is 9