解方程.6x+3/2x=9 2x-3/4x=9 x-7/1x=12 3/1x+4/1x=364 2(x-6)+3/1x=9 5/2x+x=35

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解方程.6x+3/2x=92x-3/4x=9x-7/1x=123/1x+4/1x=3642(x-6)+3/1x=95/2x+x=35解方程.6x+3/2x=92x-3/4x=9x-7/1x=123/1

解方程.6x+3/2x=9 2x-3/4x=9 x-7/1x=12 3/1x+4/1x=364 2(x-6)+3/1x=9 5/2x+x=35
解方程.6x+3/2x=9 2x-3/4x=9 x-7/1x=12 3/1x+4/1x=364 2(x-6)+3/1x=9 5/2x+x=35

解方程.6x+3/2x=9 2x-3/4x=9 x-7/1x=12 3/1x+4/1x=364 2(x-6)+3/1x=9 5/2x+x=35
6x+3/2x=9
去分母:12x+3x=18
合并同类项:15x=18
x=18/15

你的分数写的是什么啊?
三分之一:1/3
四分之三:3/4