1/3x+1/5x=22/15 5/6(x-1)=5/18 2.4×5-3/4x=9 1/13x/4/5=10/13
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1/3x+1/5x=22/15 5/6(x-1)=5/18 2.4×5-3/4x=9 1/13x/4/5=10/13
1/3x+1/5x=22/15
8/15x=22/15
x=22/15*15/8
x=11/4
5/6(x-1)=5/18
5/6x-5/6=5/18
5/6x=5/18+5/6
5/6x=10/9
x=10/9*6/5
x=4/3
2.4×5-3/4x=9
12-3/4x=9
3/4x=12-9
3/4x=3
x=3*4/3
x=4
再问: 1/13x÷4/5=10/13 再问一个,谢谢!!!
再答: 1/13x÷4/5=10/13 1/13x=10/13*4/5 1/13x=8/13 x=8/13*13 x=8
8/15x=22/15
x=22/15*15/8
x=11/4
5/6(x-1)=5/18
5/6x-5/6=5/18
5/6x=5/18+5/6
5/6x=10/9
x=10/9*6/5
x=4/3
2.4×5-3/4x=9
12-3/4x=9
3/4x=12-9
3/4x=3
x=3*4/3
x=4
再问: 1/13x÷4/5=10/13 再问一个,谢谢!!!
再答: 1/13x÷4/5=10/13 1/13x=10/13*4/5 1/13x=8/13 x=8/13*13 x=8
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