x分之3减去(x-3)分之6等于负(x 3)分之8
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1/9=x/3-1/61/9+1/6=x/35/18=x/3两边同乘以3,解的x=5/6
把x移到一边3分之2减3等于8x减2分之1x-7/3=15x/2x=-14/45
X/3-X/4=184X-3X=18*12X=18*12X=216我是老师
(x+1)/(x^2-x)-1/3x=(x+5)/(3x-3)3(x+1)/(x^2-x)-1/x=(x+5)/(x-1)3(x+1)-(x-1)=x(x+5)3x+3-x+1=x^2+5x2x+4=
x+1分之x+2减去x+3分之x+4=x+5分之x+6减去X+7分之x+8方程两边分别通分,得[(x+2)(x+3)-(x+1)(x+4)]/[(x+1)(x+3)]=[(x+6)(x+7)-(x+8
你要说的是:(x+2)分之(x+1)减去(x+3)分之(x+2)等于(x+7)分之1减去(x+6)分之1解方程(x+1)/(x+2)-(x+2)/(x+3)=1/(x+7)-1/(x+6)通分得[(x
解分式方程输入很辛苦.经检验X=7/2是原方程的解.
4(x+y)-3(x-y)=14x+7y=14(x+y)/2+(x-y)/3=6两边同乘以6,得3(x+y)+2(x-y)=365x+y=36则x+7(36-5x)=14x=7,y=1
(5/12-1/4)*x=1/31/6*x=1/3x=22/3-8x=x/22/3=8.5xx=1/51
(x-1)/3-(x+2)/6=(4-x)/2等式两边同乘6得:2(x-1)-(x+2)=3(4-x)去括号:2x-2-x-2=12-3x移项:4x=16x=4
(x^2-1)/2-(x-2)/3=x^23x^2-3-2(x-2)=6x^23x^2-3-2x+4=6x^23x^2+2x-1=0(3x-1)(x+1)=0所以x=1/3或x=-1
(x+2)/3-(1-x)/6=22*(x+2)-(1-x)=122x+4-1+x-12=03x-9=0x=3再问:2(x-1)=1-3(2-4x)再答:
(x-1)(x-3)(x-4)(x-5)-(x-1)(x-2)(x-3)(x-5)=(x-1)(x-2)(x-4)(x-5)-(x-1)(x-2)(x-3)(x-4)(x-1)(x-3)(x-5)(x
(2x+1)/3-(5x-1)/6=1两边乘64x+2-5x+1=6-x=3x=-3
x+4=3x=7
写得有点……希望能帮到你,↖(^ω^)↗
x/(x-3)-5x/(x^2-x-6)=(x^2+2x)/(x^2-x-6)-5x/(x^2-x-6)=x/(x+2)
x/(x-3)-(x+6)/(x^2-3x)+1/x=[x^2-(x+6)+(x-3)]/x(x-3)=(x^2-9)/x(x-3)=(x+3)/x.