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Home > MC2 > Chapter 3 > Lesson 3.1.5 > Problem 3-49

3-49.

For each problem, substitute the given value for each variable to evaluate each expression.

2a − 7 when a = 3

2 ( 3 ) − 7

Simplify:
6 − 7
− 1

Now solve for parts (b) - (d) using the same strategy.
Remember your order of operations, multiply or divide
before adding or subtracting.

9 + (−2 (4) ) = 1