High School · Reasoning with Equations and Inequalities

CCSS.MATH.CONTENT.HSA.REI.C.5

Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.

Read this standard on the official Common Core site

Lessons that teach this standard

• Solving Systems of Linear Equations

  Solve a system by graphing, substitution or elimination, why the solution is the intersection point, and how to spot systems with none or infinitely many.