Question

$left { {{3^{x} * 4^{y} =48} atop { 4^{y} * 3^{x} =36 }} right.$

Answer 1

{3^x*4^y=3*4²⇒x=1,y=2
{4^x*3^y=4*3²⇒x=1,y=2
(1;2)