0.2(0.2-x)÷0.01+1.2x=0.12+20x
0.2x+0.4x=12 x=?20x+x=420 x=?
x-0.2x=80 求x
0.8x+3=1.2x+0.2怎么求x
(1)3x(x+0.2)=4x(x-1.1)
0.2(0.2)/0.01+1.2x=0.12+20x解方程!
X-X×0.2=1.18
x+3/20x=46 ,x-1/5x=40 ,x-1/2x=3/4 ,x-0.2x=18解方程
18%x+32%x=2 x+20%x=2.4 x+5%x=4.2 15%x+35%x=0.2
方程:0.2x =1.2 x ÷4=10 x -1=1.01 9.7+x =10.1 1
X-(0.2X+10) -1.2*(0.2X+10)+8=0.36X 怎么解
0.4(x-0.2)+1.5=0.7x-0.38 (0.6x+420)÷(x+20)=3
解方程:1+0.4x=0.2(x+10) 2.x÷2=x+200