若2的x次方=4的y+1次方,27的y次方=3的x-1次方,根据题意写出x与y的等量关系。要初一看得懂的过程

2024-11-08 11:42:31
推荐回答(1个)
回答1:

2^x=4^(y+1)
=(2^2)^(y+1)
=2^(2y+2)
∴x=2y+2

3^(x-1)=27^y
=(3^3)^y
=3^(3y)
∴x-1=3y