# HSA-REI.C

Solve systems of equations.

## Standards

HSA‑REI.C.5 Prove that, given a system of two equations in two variables, replacing one equation by the sum...
HSA‑REI.C.6 Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on...
HSA‑REI.C.7 Solve a simple system consisting of a linear equation and a quadratic equation in two variables...
HSA‑REI.C.8 $(+)$Represent a system of linear equations as a single matrix equation in a vector variable.
HSA‑REI.C.9 $(+)$Find the inverse of a matrix if it exists and use it to solve systems of linear equations...

## Tasks aligned to this cluster

Products and Reciprocals