1.1x-0.8x=(1.1-0.8)x=0.3x
0.8*(100-x)+(1+10%)x=100*(1+4%)
2个回答
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[(100-x)*10%]*(1-x/100)=0.4,
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..)8+X :100+X=1 :10
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100+100*0.75(x+1)<100*0.8(x+2)怎么解?
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计算:1 1 1 1 1 ——+ ——+——+.+————+———— 1x2 2x3 3x4 99x100 100x10
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(1)1-100x =(1+10x)(1-10x) (2)-0.16+a b =(ab) -0
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100+1/10(x-100)=200+1/10[x-200-100-1/10(x-100)] 好的话可以给你悬赏金的~
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解方程.4+0.8x=100 [1/2]x+[1/3]x=15 x×(1-[3
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1/1X4+1/4X7+1/7X10+...+1/100X103=
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65/100 ( x-1)=37/100(x +1)+0.
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(1+2+3+4+5+6+7+8+9)X100X0=?