x-0.3x=2.7解方程

2025-12-14 15:54:37
推荐回答(4个)
回答1:

x-0.3x=2.7
0.7x=2.7
x=2.7÷0.7
x=7分之27

回答2:

x-0.3x=2.7
0.7x=2.7
x=27/7

回答3:

0.7x=2.7
x=3.867

回答4:

解:x=27/7