GHPT: (1): x.log(2)3 + log(2)y=y+ log(2) 3x/2
(2): x.log(3)12 + log(3)x=y+log(3) 2y/3

PT1:
Log2(3^x) + log2(y) - log2( 2^y)=log2(3x/2)
<=> log2((3^x y)/2^y) = log2(3x/2)
<=>(3^x/2^y)=3x/2y (1)

PT2:
log3(12^x)+log3(x)-log2(2^y)=log3(2y/3)
<=>log3((12^x x)/2^y)=log3(2y/3)
<=>(12^x)/2^y=2y/3x (2)
Từ 1 và 2 => 2x=y

Cảm ơn Long nhiều nha