12+60%x=48 x-25%x=25 30%x+45%x=27 (1+40%)x=7

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 13:15:15
12+60%x=48 x-25%x=25 30%x+45%x=27 (1+40%)x=7
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12+60%x=48 x-25%x=25 30%x+45%x=27 (1+40%)x=7
12+60%x=48 x-25%x=25 30%x+45%x=27 (1+40%)x=7

12+60%x=48 x-25%x=25 30%x+45%x=27 (1+40%)x=7
12+60%x=48
0.6x=36
x=60
x-25%x=25
0.75x=25
x=100/3
30%x+45%x=27
0.75x=27
x=36
(1+40%)x=7
1.4x=7
x=5