0.3X+0.4=0.7-0.1

解方程0.3x+0.2/0.4-0.05x+0.01/0.02=0.7x-0.1/0.3 0.04分之0.1X-0.3-X=0.4乘以（0.5X-3）求X 解方程:2- x+5/6=x- x-1/3,0.1-0.2x/0.03-1=0.7-x/0.4 0.1-0.2x/0.3=0.3x+0.1/0.7-3 0.2分之0.1x+0.3+2.5=0.4x-1 利用一元一次方程解：0.7分之0.4x-1+0.3分之2x+5=0.1 1-0.7+3x/0.8=0.3x-1/0.4-x 1-(0.7+3x）除以0.8=(0.3x-1)除以0.4-x 1-0.8分之0.7+3x=0.4分之0.3x-1-x 解方程：（4x-0.2)/0.3=(3x-1.1)/0.4+(0.16-0.7x)/0.06 3(x-7)-5(4-x)=15 0.2分之0.1x+0.3+2.5=0.4x-1 x-(0.1x+20)=28-0.7x怎么解