(1-40%)x+30=75%x

来源:学生作业帮助网 编辑:六六作业网 时间:2024/10/06 14:59:31
(1-40%)x+30=75%x(1-40%)x+30=75%x(1-40%)x+30=75%x0.6x+30=0.75x0.15x=30x=200(1-40%)x+30=75%x0.6x+30=0.

(1-40%)x+30=75%x
(1-40%)x+30=75%x

(1-40%)x+30=75%x
0.6x+30=0.75x
0.15x=30
x=200

(1-40%)x+30=75%x
0.6x+30=0.75x
30=0.75x-0.6x
30=0.15x
x=200