Question

If 8 is added to one – third of a number gives 18, then find the number​

Answer 1

Answer:

$let \: the \: number \: be \: x \\ 8 + \frac{1}{3} x = 18 \\ 8 + \frac{x}{3} = 18 \\ \frac{x}{3} = 18 - 8 \\\frac{x}{3} = 10 \\ x = 10 \times 3 \\ x = 30$