解方程 3/8:x=9:4 1/3x+7/9=5/6-1/4x

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解方程3/8:x=9:41/3x+7/9=5/6-1/4x解方程3/8:x=9:41/3x+7/9=5/6-1/4x解方程3/8:x=9:41/3x+7/9=5/6-1/4x3/8:x=9:44x=9

解方程 3/8:x=9:4 1/3x+7/9=5/6-1/4x
解方程 3/8:x=9:4 1/3x+7/9=5/6-1/4x

解方程 3/8:x=9:4 1/3x+7/9=5/6-1/4x
3/8:x=9:4
4x=9*3/8
4x=27/8
x=27/32
1/3x+7/9=5/6-1/4x
1/3x+1/4x=5/6-7/9
7/12*x=1/18
x=1/18*12/7
x=2/21

9x=3/2
x=1/6
7x/12=1/18
x=1/18x(12/7)
x=2/21