Question

if x:y=3:4 then find (7x+3y):(7x-3y)​

Answer 1

HEY MATE HERE IS YOUR ANSWER--

$\frac{x}{y} = \frac{3}{4} (multiply \: both \: side \: by \: \frac{7}{3}) \\ \\ \frac{7x}{3y} = \frac{7 \times 3}{3 \times 4} \\ \\ \frac{7x}{3y} = \frac{7}{4} (componedo \: divident) \\ \\ \frac{7x + 3y}{7x - 3y} = \frac{7 + 4}{7 - 4} \\ \\ \frac{7x + 3y}{7x - 3y} = \frac{11}{3}$