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Algebra Review
Example 9

Example 9: Mixed Algebra Review

Step-by-step worked example for this lesson track.

Problem

Evaluate −3+−2⋅2−9\text{Evaluate }-3+-2\cdot2-9

1. Recognize Pattern

a+b⋅d−c⇒a+(bd)−ca+b\cdot d-c\Rightarrow a+(bd)-c

2. Apply Method

−2+5⋅2−−4=12-2+5\cdot2--4=12

3. Conclude

−3+(−2⋅2)−9=−16-3+(-2\cdot2)-9=-16

Final answer

−3+(−2⋅2)−9=−16-3+(-2\cdot2)-9=-16
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