- 1. 20%+(1-20%)(320-x)=320×40%
2. 3/2[2/3(1/4x-1)-2]-x=2
3. ax+b=bx+a;(a≠b);(这个学了么?是不是有点难呢?)
4. 1/5x +1 =(2x+1)/4
5. x/3 -5 = (5-x)/2
6. 0.4(x-0.2)+1.5=0.7x-0.38
7. 28.2(x+1) /3=5(x+1) /6 -1
8. (5-2)/2 - (4+x)/3 =1
9. (x-2)/2 - (3x-2)/4 =-1
10. 1\ 50x+10=60