27^x=67,81^y=603 4y-3x=?

27^x=67,81^y=603 4y-3x=?
27^x=67,81^y=603 4y-3x=?

27^x=67,81^y=603 4y-3x=?
27^x=67,81^y=603 可变化为
3^(3x)=67,(1)
3^(4y)=603,(2)
(2)/(1),得
3^(4y-3x)=603/67=9
所以有4y-3x=2