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Algebra Review
Lesson 6
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Lesson 6: 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

3+−12⋅7−2=−833+-12\cdot7-2=-83

Checkpoint

Evaluate 4+−5⋅2−5\text{Evaluate }4+-5\cdot2-5

Recap

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