若方程4分之5x-3m-搜答案-百度作业网

x/(x-3)=2-m/(x-3),去分母得x=2(x-3)-m,x=6+m,当6+m=3,即m=-3时,原方程有增根.再问：答案是-24啊。我不会过程再答：你说的是(m-3)/(x^2-4)=3x/

2m-5x=4m+20xx=2m/2512x-24=9m+30+12x=(3m+22)/4所以2m/25=(3m+22)/48m=75m+550m=-550/67

X/2+M/3=X-41/2（x-16）=-6(1/2)X-8=-61/2X=2X=4把X=4代入方程X/2+M/3=X-44/2+M/3=4-4M/3=-2M=-6

5x/4-3m=m/2-15/25x/4=7m/2-15/2x=14m/5-6∵x≤0∴14m/5-6≤0∴14m/5≤6∴m≤15/7再问：能给我解释一下吗，看不懂，这道题难吗再答：不难的。就是先把

4(3x-7)=19-35x,——》x=1,代入第一个方程得：3m/6+5=m/4-7/4,——》m=-17.再问：6��֮3m+5x��ˣ��6��֮(3m+5x��再答：��һ��

3m/6+5x=m/4-7/4x4(3x-7)=19-35x12x-28=19-35x47x=47x=1代入3m/6+5x=m/4-7/4x,得1/2m+5=1/4m-7/4各项均乘以4,得2m+20

先解4（3x-7)=19-35x这个方程解得x=1再将x=1代入6分之3m+5x=4分之m-4分之7x中得到m=-27

你的题目有歧义,比如你说的2分之x加5m到底是x/2+5m还是x/2+5m/2

(3m+5x)/6=m/4-7x/4两边乘126m+10x=3m-21x31x=-3mx=-3m/314(3x-7)=19-35x12x-12=19-35x47x=31x=31/47所以-3m/31=

吧x=5带入原式中,得：3/4+(5-m)/3=17/12(5-m)/3=8/12=2/35-m=2m=3

这个容易阿,将x=5带入整个方程,得出结果m等于3.满意请采纳

(4x-m)/3=(6x-1)/5;20x-5m=18x-3;2x-5m+3=0;x=(5m-3)/2;m=1;x=1;m最小为1

(2m+x)/2=42m+x=8x=8-2m(2x-3m)/3-(x-1)/4=6x-14(2x-3m)-3(x-1)=12(6x-1)8x-12m-3x+3=72x-1267x=15-12mx=(1

x=1/2是(2x-m)/4-1/2=(x-m)/3的解(2*1/2-m)/4-1/2=(1/2-m)/33(1-m)-6=4(1/2-m)3-3m-6=2-4mm=51/4(-4m²+2m

m=负3分之2

x-2分之x-3=x-2分之mm=x-3当x=2时,方程有增根所以,m=-1

m/6-10x/3=(m+5x)/3m-20x=2m+10xm=-30xx/0.2-(1.8-2x)/0.3=13x-3.6+4x=0.67x=4.2x=0.6m=-30x=-30*0.6=-18

如果我没看错题的话将x=2代入方程得,4-m/4-1/2=2-m/31/3m-1/4m=2-4+1/21/12m=-3/2m=-3/2×12m=-181/4（-4m-8）-（m-1）=-m-2-m+1

负6再问：怎么弄的？再答：X/2+M/3=X-41/2（x-16）=-6(1/2)X-8=-61/2X=2X=4把X=4代入方程X/2+M/3=X-44/2+M/3=4-4M/3=-2M=-6希望采纳