题目内容
解方程.
| X-10%=18 | 60%X+25=40. |
(1)X-10%=18,
X-10%-10%=18-10%,
X=17.9;
(2)60%X+25=40,
60%X+25-25=40-25,
60%X=15,
60%X÷60%=15÷60%,
X=25.
X-10%-10%=18-10%,
X=17.9;
(2)60%X+25=40,
60%X+25-25=40-25,
60%X=15,
60%X÷60%=15÷60%,
X=25.
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