3⼀4:7⼀5=15⼀14:×

2025-06-27 21:52:52
推荐回答(2个)
回答1:

解:解方程,此方程的解为x = 2
∵X : Y = X ÷ Y = Z
∴3/4 : 7/5 = 15/14 : x

3/4 ÷ 7/5 = 15/14 ÷ x
3/4 × 5/7 = 15/14 ÷ x
15/28 = 15/14 ÷ x
x = 15/14 ÷ 15/28
x = 15/14 × 28/15
∴x = 2
答:此方程的解为x = 2

回答2:

3/4:7/5=15/14:×
解:3/4×x=7/5×15/14
3/4x=3/2
x=3/2×3/4
x=2