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数学
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1 X5=5 2X4=8 3X?=13 4X5=20 5X1=5 问号是什么?
人气:268 ℃ 时间:2020-03-22 11:56:00
解答
9
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4x+27=63 4x+9X3=63 3x-8=19 3x-2X4=19 6x+4x5=68 12x-7X2=82 6x+1.5X4=23.4
3x-4x5=16怎么解
3/5x+(1+1/5)x5/3x=1980怎么解
已知3x+2•5x+2=153x-4,求(x-1)2-3x(x-2)-4的值.
3x-5/2X4/3=5/9怎么算
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