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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 2p really means two p's or (2)(p).
2p + 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.