1. 2x+3=3x 2.3+a\4=12 3. 5-x=3x+4 4. x-7+8x=9x-3-4x 5. 11x+42-2x=100-9x-22 6. 3x-20+6x-2=8x-10+2x 7. 8(x+3)=48 8. (b+2)4=60 9. 5(x-1)=30 10. (2x-1)9=36 11. 3(y-5)+8=17 12. 5(x+2)=6(2x+7) 13. 5(x+3)=8(10-x) 14. 8(9+2x)=5(2-3x) 15. 6(x-3)-10=2(x+2) 16. 5(x-1)+20=4(x-3) 17. 10y+2(7y-2)=5(4y+3)+3y 18. 8(3z-2)-13z=5(12-3z)+7z 19.1/3(2x-3)=4 1/6x
2х-3х=3
-х=3
х=-3
больше лень)))