Question

5^x+y=125
3^(x-y)2-1=1 Help

Answer 1

$left { {{5^{x+y}=125,} atop {3^{x-y}cdot2-1=1,}} right. left { {{5^{x+y}=5^3,} atop {3^{x-y}=3^0,}} right. left { {{x+y=3,} atop {x-y=0,}} right. left { {{2x=3,} atop {y=x,}} right. left { {{x=1,5,} atop {y=1,5.}} right.$