(x—2)/0.2一(x —0.1)/0.5=3

您好:(x-2)/0.2-(x-0.1)/0.5=3 以1为分母通分得:5(x-2)/1-2(x-0.1)/1=3/1 去分母得:5x-10-2x-0.2=3 合并同类项,并移项得:3x=3+10-0.2=12.8 x=4.2667 祝好,再见,

解方程:x - 0.1/0.2+x+0.2/0.5=2

x-0.1/0.2+x+0.2/0.5=2( x-0.1 ) / (1/5) + (x+0.2) /(1/2) =25(x-0.1)+ 2(x+0.2) =25x-0.5+2x+0.4 =27x =2.1x=3

如何解方程x - 2/0.2 - x+1/0.5+3=0

即5(x-2)-2(x+1)+3=05x-10-2x-2+3=05x-2x=10+2-33x=9x=9÷3x=3

0.2分之X - 0.03分之0.5+0.01X=1的解

解:x/0.2-0.5/0.03+0.01x=1所以5.01x=53/3;x=5300/1503

x - 2/0.2 - x+1/0.05=3,这道题怎么做?

(x-2)(x-3)=x²-3x-2x+6=x²-5x+6

x/0.2 - (0.17 - 0.2x/0.03)=1 解方程

x/0.2-(0.17-0.2x/0.03)=1(0.03-0.034+0.04x)/0.006=1-0.004+0.04x=0.0060.04x=0.01x=0.25

(80.51 - x)/x=0.2 解x等于多少

解:(80.51-x)/x=0.2(80.51-x)=0.2x0.2x+x=80.511.2x=80.51x=80.51÷1.2x=8051/120 (120分之8051)

x一2/0.2一x十1/0.5=0.3

(x一2)/0.2一(x十1)/0.5=0.35(x一2)一2(x十1)=0.35x-10-2x-2=0.33x=12.3 x=4.1

0.3/0.2减x减1等于0.2/0.1加x

1.5-X-1=2+X,2X=0.5,X=0.25.

解方程 0.2分之x - 2 - 0.3分之x+1=1.问:x等于几

x/0.2-2-x/0.3+1=1 5x-2-10/3x+1=1 5x-10/3x=1+2-1 5/3x=2 x=6/5