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数学
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已知关于X的方程4x+2m=3x+1和方程3x+2m=6x+1的解相同,求m的值.
人气:230 ℃ 时间:2019-10-17 08:22:18
解答
解方程:4x+2m=3x+1,移项:4x-3x=1-2m,合并同类项:x=1-2m解方程:3x+2m=6x+1,移项:3x-6x=1-2m,合并同类项:-3x=1-2m,系数化1:x=(1-2m)÷(-3)x=(2m-1)/31-2m=(2m-1)/3,再解方程:去分母,方程两边同时乘3得:3(1-2m...
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