1. 2(x-2)-3(4x-1)=9(1-x)
2x-4-12x+3=9-9x
x=-10
2. 11x+64-2x=100-9x
18x=36
x=2
3. 15-(8-5x)=7x+(4-3x)
15-8+5x=7x+4-3x
x=-3
4. 3(x-7)-2[9-4(2-x)]=22
3x-21-2(9-8+4x)=22
3x-21-2-8x=22
-5x=55
x=-11
5. 2(x-2)+2=x+1
2x-4+2=x+1
x=3
6. 30x-10(10-x)=100
30x-100+10x=100
40x=200
x=50
7. 4(x+2)=5(x-2)
4x+8=5x-10
x=18
8. 120-4(x+5)=28
120-4x-20=28
-4x=-72
x=18
9. 15x+854-65x=54
-50x=-800
x=16
10. 3(x-2)+1=x-(2x-1)
3x-6+1=x-2x+1
4x=6
x=3/2
11. 11x+64-2x=100-9x
18x=36
x=2
12. 14.59+x-25.31=0
x=10.72
13. (x-6)×7=2x -2
7x-42=2x-2
5x=40
x=8
14. 3x+x=18
4x=18
x=9/2
15. 12.5-3x=6.5
3x=6
x=2
16. 1.2(x-0.6)=4.8
1.2x- 7.2=4.8
1.2x=12
x=10
17. x+12.5=3.5x
2.5x=12.5
x=5
18. 8x-22.8=1.2
8x=21.6
x=2.7
19. 2x=5x-3
3x=3
x=1
20. x+5=8
x=3