错误的方程吧？？
[X-(1/5X+5)-(1/4x-7)]+(1/5X+5)+(1/5X+7)+1/8X=X
14个回答
相关问题
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1/1x2x3x4+1/2x3x4x5+1/3x4x5x6+1/4x5x6x7+1/5x6x7x8+1/6x7x8x9+
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4X－1.8=4.8.2.5X－2.5=7.5.5X－1.8=4.3X＋1.5=6.求X
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6x+13.5=50+x 7.8x-1.7+1.2x=5.5
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1/4x-1/2=3/4;7x-5/4=3/8；2x-1/6=5x+1/8；1/2x-7=9x-2/6；1/5x-1/2
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(5-7X)/8=(7-5X)/7-1
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解方程①5x-1.2=1.8②1.7+7.8-x=5.6③6.4x-x=32.4．
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(7.5/1+5/1)+5/1(x-1)=1 80/xX2+80/x+5 x8=4/3
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7（x+5)-(x+1)=5(x-1)
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x²+4x-2=0,x²-4x+1=0,(x+√5)(x-√5)=20,x²+6x+5=8x+7,25(2x-1)²-1
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4/5x-1/10x=7/8/ 5/16=3/4x+1/2x