123.1-0.2+0.3-4=
123.1-0.2+0.3-4=
2(0.3x-4)-5(0.2x+3)=4
解方程:x-3/0.3-x+4/0.2=1.6
已知a=0.2^0.3,b=log(0.2)3,c=log(0.2)4,比较大小
A=[0.3 -0.2 -0.1 0.3;-0.2 0.1 0.1 -0.1;0.7 -0.2 0.2 0.4;0.1
5(0.2x+7)-2(0.3x-4)=47 解方程
2(0.3x+4)-5(0.2x-7)=9
0.3乘5分之4减6x=0.2怎么解
0.3分之3x-1=0.6分之4-x +0.2分之3x+5
2(0.3X+4)-5(0.2X-7)=9 方程解
2(0.3x+4)-5(0.2x-1.8)=1 求x的解
请问这道题怎解,(X-4)/2+(0.2X-0.3)/0.5=0.02X/0.01