If you just make an equation you can solve this really easily.

One fifth a number (number being A) plus three of that number = 32

A/5 + 3A = 32

A + 15A = 32*5

16A = 32*5

16A = 160

A = 10

Check to make sure(not absolutely necessary but at least you know your right)

10/5 + 3(10) = 32

2+ 30 = 32

32=32

Q2

A + 2A/3 = 35

3A + 2A = 35*3

5A = 105

A = 105/5 ---> A = 21 !

To solve these kinds of problems just make "a Number" equal a variable then you can write out the equation and solve.