0.5/0.2x+0.5=4+0.03/0.03+0.02x
0.2x+0.5/0.5-0.03+0.02x/0.03=1 x-1/0.3-x+2/0.5=1
4X+0.5X=13.5X
解方程:(0.4x-9)/0.5-(x-5)/2=(0.03+0.02x)/0.03
解下列方程:0.03+0.02x/0.03=0.4x+0.9/0.5-x-5/2
0.4x+0.9/0.5-0.03+0.02x/0.03=x-5/2
求1/2x^2-1/4x+0.2x^3+0.25x-0.5x^2-1/5x^3+0.5x-1 其中x=12/13
0.2x+0.5/0.5--0.03+0.12x/0.3=x-6/2
0.4x+0.9/0.5-x-5/2=0.03+0.02x/3解方程
(0.5x+0.9)+3分之x-5=0.03分之0.01+0.02x
请问这道题怎解,(X-4)/2+(0.2X-0.3)/0.5=0.02X/0.01
先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5
(X+4)/0.2-(X-3)/0.5=0.2 x-(x-1)/6=3-(x+2)/3 x/12-(2x-1)/20={