What dose 3 + 3 (a) simplify to when a=5

You do 3 times 5 which equals 15 so it becomes 3+15

To find what 3 + 3 (a) simplifies to when a = 5, first substitute.

3 + 3a

3 + 3 (5)

Follow the order of operations (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction) to properly simplify.

Multiply 3 and 5.

3 + 15

Add.

18

Answer:

18