Problem Metadata

Date: November 13, 2025

Problem Number: #3

Problem Curator: @Phanie

lymphoidcell - Overview

Status: Completed ✅

Solution List

Problem Statement

There are 15 systems of linear equations designed to be solved using:

  1. Gaussian Elimination
  2. Inverse Matrix Method
  3. Substitution/Elimination
  4. Row/Column Picture Analysis

Part A: 2×2 Systems (3 Problems)

Problem 1 (Non-Unit Pivot)

$$ \begin{cases} 2x + 3y = 7 \\ 4x - 5y = 3 \end{cases} $$

Problem 2 (Negative Coefficients)