已知关于x的方程(x-m)/2=x+(m)/3与(x-1)/2=3x-2的解互为倒数,求m的值
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(x - m)/2 = x + (m)/3
3(x - m) = 6x + 2m
3x - 3m = 6x + 2m
3x = -5m
x = -5m/3
(x - 1)/2 = 3x - 2
x - 1 = 6x - 4
5x = 3
x = 3/5
因为解互为倒数
所以 (-5m/3) ·(3/5) = 1
所以 m = -1
3(x - m) = 6x + 2m
3x - 3m = 6x + 2m
3x = -5m
x = -5m/3
(x - 1)/2 = 3x - 2
x - 1 = 6x - 4
5x = 3
x = 3/5
因为解互为倒数
所以 (-5m/3) ·(3/5) = 1
所以 m = -1
更多追问追答
追问
有一步算错了3x - 3m = 6x + 2m下一步 应该是3x=5m
追答
没算错,就应该是 3x - 3m = 6x + 2m ,3x = -5m
你再仔细看看
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