(x-3)/0.5-(x+4)/0.2=1.6
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(x-3)/0.5-(x+4)/0.2=1.6
![(x-3)/0.5-(x+4)/0.2=1.6](/uploads/image/z/4513181-5-1.jpg?t=%EF%BC%88x-3%EF%BC%89%2F0.5-%EF%BC%88x%2B4%EF%BC%89%2F0.2%3D1.6)
(x-3)/0.5-(x+4)/0.2=1.6
2(x-3)-5(x+4)=1.6
3x=-27.6
x=-9.2
2(x-3)-5(x+4)=1.6
3x=-27.6
x=-9.2
(x-3)/0.5-(x+4)/0.2=1.6
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
3/x-1=4/x 6/x+1=x+5/x(x+1)
5*(x-2)=4*(x+3) 2x+(50-x)*4=140 3x-(8-x)=20*4 200x=(x-0.5)*2
先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5
(先化简后求值)(3x/x+2-x/x-2)+2x/x^2-4,x=4-根号5,
(4x-1.5)/0.5-(5x-0.8)/0.2=(1.2-x)/0.1-3
5x+3=x-4,4y+11=22,11x+68-2x=100-9x,0.1x/0.2-(0.27x+0.18)/0.0
3x²-【5x-(0.5x-3)+2x²】(其中x=-4)
5x/(x+3)(x+2)+(2x-5)/(x-4)(x+3)=(7x-70)/(x+2)(x+4)
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)