解方程 (1)x+39/14=5.375 (2)x-74/5=42/7 (3)3/4-0.6+x=11/20 (4)8-x=7.5-32/3.

问题描述:

解方程
(1)x+3

9
14
=5.375
(2)x-7
4
5
=4
2
7

(3)
3
4
-0.6+x=1
1
20

(4)8-x=7.5-3
2
3

(1)x+3914=5.375    x+3914-3914=5.375-3914             x=14156;(2)x-745=427 x-745+745=427+745   &nbsp...