2⼀5X,减1⼀三等于3⼀5?

2024-11-25 00:13:03
推荐回答(4个)
回答1:

解:解方程,此方程的解为x = 7/3
(2/5)x - 1/3 = 3/5
(2/5)x = 3/5 + 1/3
(2/5)x = 9/15 + 5/15
(2/5)x = 14/15
x = 14/15 ÷ 2/5
x = 14/15 × 5/2
∴x= 7/3
答:此方程的解为x = 7/3

回答2:

2x/5-1/3=3/5
2x/5=3/5+1/3
2x/5=9/15+5/15
2x/5=14/15
x=14/15÷2/5
x=14/15×5/2
x=7/3
x=2又1/3

回答3:

方程两边同时乘以15得
6x-5=9
6x=14
X=7/3

回答4:

2x/5-1/3=3/5
2x/5=3/5+1/3
2x/5=14/15
x=14/15 ÷ 2/5
x=7/3