Question

solve x+5y=36 andx+y/x-y=5/3​

Answer 1

$x + 5y = 36------(1) \\\\\frac{x+y}{x-y}=\frac{5}{3}\\\\3x + 3y = 5x - 5y\\2x=8y\\x-4y=0-------(2)\\x=4y$

Put $x=4y$ in (1) equation;

$4y + 5y = 36\\y = 4$

Again put the value of y in (2) equation;

$x+20=36\\x=36-20\\x=16$