六年级按数学问题,求高人.过程.急.快

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六年级按数学问题,求高人.过程.急.快
六年级按数学问题,求高人.过程.急.快

六年级按数学问题,求高人.过程.急.快
1)抱歉.题目看不清.
2)根据定义|n+1|=1 所以n=0或-2
那么化简原方程3x+2x-7=8
得x=3
3)化简方程的8x+2k=20
即4x+k=10
又方程有正整数解,且k为正整数,那么k=6或2
欢迎采纳(这确定是六年级的题么)

你确定这是六年级??

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