解一元一次方程练习题.docx

解一元一次方程练习题 解一元一次方程的练习题： 1. 2x+5=5x-7 2. 4-3(2-x)=5x 3. 3(x-2)=2-5(x-2) 4. 2(x+3)5 5. 3(x+1)-2(x+2)=2x+3(6) 6. x^2=3x-1 7. (1/3)-(x-1/2)=1 8. 3-1.2x=4/5x-12 9. -5(1-x)=3(x-1) 10. 3(x-2)+1=x-(2x-1) 11. 2x-1/3=2+1/x+8/3=-x/3 12. x-0.4=1/2x+0.3 13. x-1=(1113x-14x+2)/(x+x+x) 14. x^2+x-1/5=1 15. 3y+12/5y