Smart With Equations?????11-13 please show work each for 5 ratings!

21. 7(x + 1) =2x + 57
22. 5(x - 2) = -30
23.1/7 (x +21)= -6
24. 2(x - 8) = -16 - 2
Please show work on each problem please
just show me how you do it and ill get it :)! thanks for your time

21. 7(x+1)=2x+57
7x+7=2x+57
-2x -2x
5x=50
X=10

22. 5(x-2)=-30
5x-10=-30
+10 +10
5x=-20
X=-4

23. 1/7(x+21)=-6
1/7x+3=-6
-3 -3
1/7x=-9
X=-63

24. 2(x-8)=-16-2
2x-16=-18
+16 +16
2x=-2
X=-1

:) there you go