求七年级下册数学实验班提优训练的电子版or以下题目 七年级下册数学沪科版实验班提优训练的答案啊 谁有呢 发一下啦...
\u4e03\u5e74\u7ea7\u4e0b\u518c\u6570\u5b66\u5b9e\u9a8c\u73ed\u63d0\u4f18\u8bad\u7ec3\u7b54\u68481
\u8bbe\u5e95\u8fb9\u957fx\u5398\u7c73\uff0c\u5219\u8170\u957f2x\u5398\u7c73 \uff0c\u6240\u4ee5
x 4x=36
x=7.2\u5398\u7c73
2
\u5047\u8bbe\u8170\u957f\u4e3a8\u5398\u7c73\uff0c\u5219\u5e95\u8fb9\u957f36-16=20\u5398\u7c73
8 8=16\uff1c20\uff08\u4e24\u8fb9\u4e4b\u548c\u5e94\u8be5\u5927\u4e8e\u7b2c\u4e09\u8fb9\uff09
\u6240\u4ee5\u5e94\u8be5\u662f\u5e95\u8fb9\u957f8\u5398\u7c73\uff0c\u5219
\u8170\u957f\u4e3a\uff0836-8\uff09/2=14\u5398\u7c73
\u6211\u6709 \uff0c\u6211\u4e70\u4e86
http://book.knowsky.com/book_160346.htmghxchgdfs
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