Question

Twice a number is increased by one-third the same number. The result is 42. Find the number

Answer 1

X - the unknown number.

$2x + \frac{1}{3} *x = 42 \\ \frac{6}{3} *x + \frac{1}{3} *x = 42 \\ \frac{7}{3} *x = 42 \\ x = 42 : \frac{7}{3} \\ x = 42 * \frac{3}{7} \\ x = \frac{126}{7} \\ x= 18$

x = 18.