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Algebra Review
Lesson 2
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Lesson 2: Mixed Algebra Review

Coordinate simplification, substitution, and operation order.

Review problems mix multiple skills. Start with structure recognition, then apply operation rules in the correct sequence.

Key formula

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

Worked example

5+6⋅9−12=475+6\cdot9-12=47

Checkpoint

Evaluate 1+4⋅7−1\text{Evaluate }1+4\cdot7-1

Recap

  • - Spot operation precedence before computing.
  • - Rewrite difficult forms into smaller chunks.
  • - Validate by reverse substitution when possible.
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