x/0.7-1-0.2x/0.3=1

x/0.7-1-0.2x/0.3=1
x/0.7-1-0.2x/0.3=1

x/0.7-1-0.2x/0.3=1
x=21/8

我会做等着啊快

(x+1)/0.3-2x=(0.1x+0.2)/0.05 0.3x+0.4=0.7x-1 (x-1)+(x+2)+0.2x+2x=46 X(X-1)=X 0.7分之x-0.3分之0.7-0.2x=1 0.7分之x-0.3分之0.7-0.2x=1 x/0.7-1-0.2x/0.3=1 解方程：x/0.7-0.17-0.2x/0.3=1 解方程x/0.7-0.3/0.17-0.2x=1 （1.7-2x）/0.3=x/0.7-1,（3+0.2x）/0.2-(0.2+0.03x)/0.01=0.75 (x-1)/0.3-(x+7)/0.5=1.7 x/0.7-(0.17-0.7x)/0. 1-0.5x/0.3-2/3x=0.3x/0.2x+1 5(x-1)=x+1 0.4(x-0.2)+1.5=0.7x-0.38 x>=1,x x+1 0.1x+0.2 _____ -2x = _____ 0.3 0.05x+1 0.1x+0.2 0.3 0.05 x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, 8x-5.5x=7.57.2x÷3.6=2 3x＋6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x＋x=1.8 3.2x＋1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x＋6x=4.5 18x-12x=5.42x-1.6x=3.6 18x＋3x=7×6 1.2x-0.5x=0.71.3x＋2.7x=1 4x-3.2x=6.4 0.8x＋3.2x＋3x=562.8x-2x=7.2