Question

6-3/8x等于0.75？

帮我解答一下。

Answer 1

解：解方程，此方程的解为x = 14

6 - （3/8）x = 0.75
6 - （3/8）x = 75/100
6 - (3/8)x = 3/4
（3/8）x = 6 - 3/4
（3/8）x = 24/4 - 3/4
（3/8）x = 21/4
x = 21/4 ÷ 3/8
x = 21/4 × 8/3
∴x = 14
答：此方程的解为x = 14

Answer 2

6-3/8x=0.75
6-3/8x=3/4
3/8x=6-3/4=(6X4-3)/4
3/8xX8=(24-3)/4X8
3x=21X2
x=21X2/3
x=7X2
x=14

Answer 3

6-3/8×=0.75

6-3/8×=3/4

48-3×=6

3×=48-6

3×=42

×=14

Answer 4

设x不等于0，得
48x-3=6x
42x=3
x=1/14≈0.0714285（714285循环）

Answer 5

一定是5.71875