0.1(x-1)/0.2-x+2/0.4=9怎么算把中间的步骤也写得详细点（重点），要按照七下的教学书的步骤来解答！我就会考虑采纳为最佳！

解方程:2- x+5/6=x- x-1/3,0.1-0.2x/0.03-1=0.7-x/0.4 X+1/0.2-2X=0.1x+0.2/0.03: (x+1)/0.3-2x=(0.1x+0.2)/0.05 x-2-2-x/2=x-2/3 x-0.6/0.4+x=0.1x+1/0.3 1+x/0.1-0.4x-0.5/0.2=1/2 解方程x-0.2x-27-(x-0.2x-27)*0.1=x/2+10.8x-27-0.08x+2.7=x/2+1对吗 21分之10x÷3分之2=7分之3x-3分之1x-2分之1x=190x-53x=7408.5x-6.9x=43.3x-200=0.2x+1101.02+0.4x+2.6x=3.428.9x-67=4.5x+656x-58=3x+1410x-20=5x+806x+5=10x-3420-1.4x=9.8x-288.2x+5.4x=272 急,怎么解 0.5x/0.2 - 1.5-x/2= 0.5 1+x/0.1 - 0.4x-0.5/0.2 = 1/20.5x/0.2 - 1.5-x/2= 0.5 1+x/0.1 - 0.4x-0.5/0.2 = 1/2 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || x的平方+2(根号3+1)x+2根号3=0 (x-3)的平方-(x+3)的平方=2(x-5)(x+1) 0.2x的平方-0.1=0.4x (5-x)*3=(7-x)*2 x*（1-0.2）=145-x+8 x*6+x（1+0.1）*5=1518 9+x =(36+x)*0.4 (x-1)+(x+2)+0.2x+2x=46 (1+x)÷0.1-(0.4x-0.5)÷0.2=2/1求x 0.4(x-3)/0.3-(0.1x-0.2)/0.04=1-(x-1/2) 0.3/0.4(x-3)-0.04/0.1x-0.2=1-2/x-1 解不等式:(0.1x-2)/0.5-(x+1)/2≤(0.4-0.2x)/0.3 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 求解方程式,唉,把学的东西全还给老师了.0.1X+0.2(X-2)+0.3(X-4)+0.2(X-6)+0.1(X-8)+0.05(X-10)+0.05（X-12）=12.50.1X+0.2X-0.4+0.3X-1.2+0.2X-1.2+0.1X-0.8+0.05X-0.5+0.05-0.6=12.5X-4.7=12.5X=12.5+4.7X=17.2这个方程式是我们老大算