### Home > MC1 > Chapter 8 > Lesson 8.2.3 > Problem 8-51

8-51.

For the expression below, you can substitute the values given for each variable and then simplify the expression.

It is important to remember that 2*p* really means two *p*'s or (2)(*p*).

2*p* + 8 for *p* = 4

2(4) + 8 = 8 + 8 = 16

And, remember to follow the order of operations!

21

If the variable is substituted here, the expression becomes

can you simplify it now?

12

8 + 4 (3.5)

Follow the order of operations.