0.1x-0.2/0.02+X+1/0.5=3

（0.1x-0.2）/0.02+（x+1）/0.5=3 求x x-2/0.2-x+1/0.5=3 x=? (1)3x(x+0.2)=4x(x-1.1) 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 (0.1X-0.02)/0.01-(X+1)/0.5=3 0.1x-3\0.2+0.3x+0.5\0.6=x-1\3 1-0.5x/0.3-2/3x=0.3x/0.2x+1 （1）1-x/3=8-2x/2[解方程][过程要有] （2）0.1x-0.2/0.02=3+x+1/0.5[解方程][过 (X+4)/0.2-(X-3)/0.5=0.2 x-(x-1)/6=3-(x+2)/3 x/12-(2x-1)/20={ x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x 解方程:2- x+5/6=x- x-1/3,0.1-0.2x/0.03-1=0.7-x/0.4 -(4x-1)/6+(x+1)/3=1和（4x-1.5)/0.5-（3x+0.8）/0.2=（4-x）/0.1