off the course:若M+1除以3与2M-3除以3互为相反数,求M的值
来源:百度文库 编辑:高考问答 时间:2024/05/09 14:48:23
(M+1)/3=-(2M-3)/3
M+1=-(2M-3)
3M=2
M=2/3
(M+1)/3=-(2M-3)/3
=>M+1=3-2M
=>3M=2
=>M=2/3
2/3
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来源:百度文库 编辑:高考问答 时间:2024/05/09 14:48:23
(M+1)/3=-(2M-3)/3
M+1=-(2M-3)
3M=2
M=2/3
(M+1)/3=-(2M-3)/3
=>M+1=3-2M
=>3M=2
=>M=2/3
2/3