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
人气:303 ℃ 时间:2019-08-20 00:49:36
解答
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=1
x=14/11x6表示()4/5÷3表示()24/114/15是文字回答11分之2415分之4
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