解方程. (1)x+5%=0.42÷10% (2)5/8:x=11/2:(5-23/5)

问题描述:

解方程.
(1)x+5%=0.42÷10%
(2)

5
8
:x=1
1
2
:(5-2
3
5

(1)x+5%=0.42÷10%         x+5%=4.2      x+5%-5%=4.2-5%            x=4.15...