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x-30%x=7,(1+35%)x=270%,15-10%x=1.解方程
过程啊。谢谢了
人气:202 ℃ 时间:2020-02-04 04:13:10
解答
x-30%x=7
0.7x=7
x=7÷0.7
x=10
(1+35%)x=270%
1.35x=2.7
x=2.7÷1.35
x=2
第三题不全第三题是15-10%x=1谢谢了15-10%x=10.1x=15-10.1x=14x=14÷0.1x=140 不懂可追问,有帮助请采纳,谢谢!
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