鸡兔同笼问题方程计算怎么解决
看来我要动真格儿的了
给你们一个算式，打问号部分是“为什么这样做”
如：
4x+2（8-x）=26
2x+16 =26
x =5
还有，回答要简略
人气：361 ℃ 时间：2020-04-05 09:07:18
解答
4x+2（8-x）=26
4x+2*(8-x)=26
4x+16-2x=26
4x-2x+16=26
2x+16=26
2x=10
x=5
4x+2*(8-x)=26
4x+16-2x=26运用了乘法分配律
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