75-17.5*14x得15
75-17.5*(15-x)=7.5x/2
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相关问题
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15.75--(2.5+7.5)x(?)=0.75
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(15-7.5)x=0.75*2
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(4.5-x)*7=17.5 x/2+4=3/2x+1 7/2*2/3-4x=7/3 5/8(x-.3)=75% 1+x
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17.5+5x=75x
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1.5/17X5/12X17 2.7/13+7/13X12 3.6/7-6/7X8/15 (简便计算、求过程)
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(x+x+2.5)*(3/5)=75-(3/7)x
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3/17+x=15/17,x+7/16=13/18,x-4/39=5/13
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15/16x-2.5*6=75%x
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明天要交,1、6/17*5/7+2/7*6/11=?解方程:X+11.5X=15--------------------
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5(x+15)=17.5