Template 1
Math I · A-REI.5
Justify elimination: replacing one equation in a two-variable system with a linear combination preserves solutions.
Justify elimination: replacing one equation in a two-variable system with a linear combination preserves solutions.
Concept
Algebra
Domain
Reasoning with Equations and Inequalities
Problem Types
Problem Templates In This Objective
9 problem types are attached to this objective. The full web app handles practice, answers, hints, and walkthroughs.
Template 2
Decide whether an elimination step is valid
Template 3
Find a multiplier to eliminate a variable
Template 4
Compare system transformations and decide which preserves solutions
Template 5
Find the first invalid step in an elimination solution
Template 6
Show that an original system and transformed system share the same ordered-pair solution
Template 7
Decide whether an elimination action loses system information
Template 8
Decide whether a system replacement is equivalent
Template 9