Question

x by4+ x by3 + x by 5 is equals to 4by5 find for x

Answer 1

$\frac{x}{4} + \frac{x}{3} + \frac{x}{5} = \frac{4}{5} \\ 15x + 20x + 12x = 48 \\ 47x = 48 \\ x = \frac{48}{47} \\ x = 1 \frac{1}{47}$