1楼:妙酒
x-1/3x=3/4
2/3x=3/4
x=3/4÷2/3
x=9/8,
3/4x-1/2=1
3/4x=1+1/2
x=3/2÷3/4
x=22/3-3/4x=1/6
3/4x=2/3-1/6
x=1/2÷3/4
x=2/3
3/4x÷5/8=9/10
6/5x=9/10
x=9/10÷6/5
x=3/4
8/9×+1/15=4/5
8/9x=4/5-1/15
x=11/15÷8/9
x=33/40
2楼:匿名用户
第一个:2x/3=3/4, x=9/8
第二个:3x/4=3/2, x=2
第三个:3x/4=1/2, x=2/3
3楼:匿名用户
x-1/3x=3/4,
2/3x=3/4
x=3/4÷2/3
x=9/8
3/4x-1/2=1
3/4x=1+1/2
3/4x=3/2
x=3/2÷3/4
x=22/3-3/4x=1/6
3/4x=2/3-1/6
3/4x=1/2
x=1/2÷3/4
x=2/3
3/4x÷5/8=9/10
3/4x=9/10×5/8
3/4x=9/16
x=9/16÷3/4
x=3/4
8/9×+1/15=4/5
8/9x=4/5-1/15
8/9x=11/15
x=11/15÷8/9
x=33/40
解方程。 4/5x+2/3x=5/6 x-1/3x=1/3 3/4x+3/5=3/10 3/4x-3/5=3/10 3x÷4/5=3/8 5/4÷3x=3/8
4楼:匿名用户
4/5x+2/3x=5/6
24x+20x=25
44x=25
x=25/44
x-1/3x=1/3
2/3x=1/3
2x=1
x=1/2
3/4x+3/5=3/10
3/4x=3/10-3/5
1/4x=1/10-1/5
1/4x=-1/10
x=-2/5
3/4x-3/5=3/10
1/4x=1/10+1/5
1/4x=3/10
x=6/5
3x÷4/5=3/8
3x=3/8*4/5
x=1/10
5/4÷3x=3/8
5/4=9/8x
x=40/36
x=10/9
1/2x+1/3x=3/4(解方程) 17-120%x=5 x-1\4x=1/2 x÷2/3-5x乘1/4=1/4
5楼:匿名用户
1/2x+1/3x=3/4
6x+4x=9
10x=9
x=0.9
17-120%x=5
-1.2x=5-17
-1.2x=-12
x=10
x-1\4x=1/2
4x-x=2
3x=2
x=2/3
x÷2/3-5x乘1/4=1/4
6x-5x=1x=1
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