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数学
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(5x-0.3)/0.4=(3x-1.2)/0.6-(1.8-8x)/1.2
得数是什么,可以用分数,
人气:498 ℃ 时间:2020-03-16 06:33:11
解答
(5x-0.3)/0.4=(3x-1.2)/0.6-(1.8-8x)/1.2 两边乘1.2
3(5x-0.3)=2(3x-1.2)-(1.8-8x)
15x-0.9=6x-2.4-1.8+8x
15x-0.9=14x-4.2
15x-14x=0.9-4.2
x=-3.3
推荐
5X-0.4/0.3
(1.8-8x)/1.2-(1.3-3x)/2-(5x-0.4)/0.3=0
1.8-8x/1.2-1.3-3x/2=5x-0.4/0.3
(5x-0.4)/0.3+(1.3-3x)/2=(1.8-8x)/1.2
(1.8-1.8x\1.2)-(1.3-1.3x\2)-(5x-0.4\0.3)=0
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