Question 30577
All you have to do for these questions is plug in the given variable's value and then solve, which is either subtraction, multiplication, addition or division.
3h+2   h=10
3(10)+2
30+2
32
___
2x   x=15
2(15)
30
___
4p-3   p=20
4(20)-3
80-3
77
___
I'm confused about the last one, I don't know what you mean.