0.01分之4-6x-6.5=0.02分之0.02-2x
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若原题是:5/2x+3=1/3+7x移项得5/2x-7x=1/3-3合并同类项得-9/2X=-8/3两边同乘以-2/9,得x=16/27.若原题是:(5x+3)/2=(1+7x)/3去分母得3(5x+
1/(X-4)+1/(X-10)=1/(X-8)+1/(X-6)(X-4)(X-6)(X-8)(X-10)(X-6)(X-8)(X-10)+(X-4)(X-6)(X-8)=(X-4)(X-6)(X-1
X+1分之X+2+X+7分之X+8=X+5分之X+6+X+3分之X+4等式两边各2个x常数和都为10所以都约去得1/x+7/x=5/x+3/x为恒等式所以x为不等于零的任意实数再问:������ڶ�Щ
5分之1(x-8)+4分之1x+7分之x-1=6-5分之23-x28(x-8)+35x+20(x-1)=840-28(23-x)28x-224+35x+20x-20=840-644+28x55x=44
(1)x=3/8*10/9*2/5=1/6(2)x=1/4*3/2*1/6=1/16(3)x=5.2/4*6.5=8.45(4)x=12*8*3/4=72再问:谢谢~不过还有两题呢??2分之1:7分之
(1)2x/(x+1)=12x=x+1x=1(2)x/(x-2)-1/(x²-4)=1x(x+2)-1=x²-4x²+2x-1=x²-42x=-3x=-3/2(
希望能帮上忙,第一步x-7/x-9+x-3/x-5=x-4/x-6+x-6/x-8第二步(x-9)+2/x-9+(x-5)+2/x-5=(x-6)+2/x-6+(x-8)+2/x-8第三步1+2/x-
(4-6x)/0.01-6.5=(0.02-2x)/0.02)-7.5400-600x=1-100x-1500x=400x=4/5选C
我来再问:再答:再答:就这样再答:谢谢采纳
1.(4-6x)/0.01-6.5=(0.02-2x)/0.02-7.5400-600x-6.5=1-100x-7.5500x=400x=0.82.原方程可化为:(8x-3)-(25x-4)=12-1
(x+5)/(x+4)+(x+6)/(x+5)=(x+4)/(x+3)+(x+7)/(x+6)1+1/(x+4)+1+1/(x+5)=1+1/(x+3)+1+1/(x+6)1/(x+4)+1/(x+5
每个分式减去1(x-4-x+5)/(x-5)+(x-8-x+9)/(x-9)=(x-7-x+8)/(x-8)+(x-5-x+6)/(x-6)1/(x-5)+1/(x-9)=1/(x-8)+1/(x-6
4分之5X-X+3=3分之2X-7-6分之X-25X/4-X+3=(2X–7)/3-(X-2)/615X-12X+36=4(2X–7)-2(X-2)3X+36=6X–243x=60X=20
(x+3)/7-(x+2)/5=(x+6)/6-(x+4)/4(1-2x)/35=-2x/2424-48x=-70x22x=-24x=-12/11
x:9=3分之2:6分之56分之5x=66分之5x除6分之5x=6除6分之5xx=5分之36x分之6.5=4分之1313x=2613x除以13=26除以13x=2望采纳
本人一次只回答一个算了吧或者你分开提问x/(x+2)=x/(x-1)两边乘(x+2)(x-1)x²-x=x²+2x3x=0x=0经检验,x=0是方程的解
4*100/0.01*100-6.5=0.02*100/0.02*100-4x-7.5400/1-6.5=2/2-4x-7.5400-6.5=1-4x-7.54x=1-7.5-400+6.54x=-4
1/(X-7)-1/(X-5)=1/(X-6)-1/(X-4)移项1/(X-7)+1/(X-4)=1/(X-6)+1/(X-5)通分(2x-11)/[(x-7)(x-4)]=(2x-11)/[(x-6
解方程两边同时乘以12得:9x+2x=18011x=180x=180/11