Before Starting this Section, ReviewObjectivesDefinitionsSolutionPractice Problem 1Identities, Conditional Equations, and Inconsistent EquationsEquivalent EquationsSolving Linear Equations in One VariablePractice Problem 2SolutionPractice Problem 3SolutionPractice Problem 4SolutionPractice Problem 5SolutionPractice Problem 6FormulasSolutionPractice Problem 7SolutionPractice Problem 8SolutionPractice Problem 9Section 1.1 ExercisesConcepts and VocabularyBuilding SkillsApplying the ConceptsBeyond the BasicsCritical Thinking/Discussion/WritingGetting Ready for the Next Section