30%x-12%x=4分之3 解方程？
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0.3x-0.12x-0.75
0.18x=0.75
x=25/6,6,30%x-12%x=4分之3
(0.3-0,12)x=3/4
0.18x = 0.75
x=0.75÷0.18
x=25/6,2,18%x=3/4
x=1/18%x3/4
x=25/6,2,你好~
30%x-12%x=4分之3
0.3x-0.12x=3/4
0.18x=3/4
18/100x=3/4
x=3X100/4X18
x=25/6,1,0.3x-0.12x=0.75
0.18x=0.75
x=25/6,0,
0.18x=0.75
x=25/6,6,30%x-12%x=4分之3
(0.3-0,12)x=3/4
0.18x = 0.75
x=0.75÷0.18
x=25/6,2,18%x=3/4
x=1/18%x3/4
x=25/6,2,你好~
30%x-12%x=4分之3
0.3x-0.12x=3/4
0.18x=3/4
18/100x=3/4
x=3X100/4X18
x=25/6,1,0.3x-0.12x=0.75
0.18x=0.75
x=25/6,0,
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