2/3 x = 24

and

3(x - 5) + 7 = 16

and

Find three consecutive numbers whose sum is 60 <-, I know it's 19,20,21 but how would I show my work for this?

I can figure it out in my head, but I can't make the exact process work to spell it out because I have to show my work. Thanks for your guys help again.