2x-x=48解方程? 2x-2=48怎解方程
2x=48\u89e3\u65b9\u7a0b\uff1f\u89e3\uff1ax=48/2
=24
2x-2\uff1d48
2x\uff1d50
x\uff1d25
\u4f60\u597d\uff0c\u672c\u9898\u5df2\u89e3\u7b54,\u5982\u679c\u6ee1\u610f
\u8bf7\u70b9\u53f3\u4e0b\u89d2\u201c\u91c7\u7eb3\u7b54\u6848\u201d\u3002
2x-x=48
x=48
验证:2×48-48=48
2x−x=48
x=48
解:
2x-x=48
x=48
2x-x=48 x=48
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