Unit 4

Solving Linear Equations & Inequalities

Grade 8 solving in one variable is extended in Algebra I to inequalities, literal equations, and modeling constraints.

Both exams

Essential question: When does an equation have one solution, none, or infinitely many?

Use inverse operations, keeping the equation balanced. If variables cancel, interpret the remaining true or false statement.

NY-8.EE.7 · AI-A.REI.3 · AI-A.CED.1

Inequalities use the same solving moves as equations, with one extra rule: multiplying or dividing by a negative reverses the symbol.

AI-A.CED.1 · AI-A.REI.3 · AI-A.REI.12