INTRODUCTION TO SYSTEMS OF LINEAR EQUATIONS III

ANOTHER CONTINUATION ... 
A system is said to be in Row-Echelon Form if it follows a stair-step pattern and has leading coefficients of 1.One can easily solve a system using Back-substitution.

Two systems of Linear Equations are called equivalent if they precisely have the same solution set.

Operations that lead to equivalent systems of equations
1. Interchange two equations
2. Multiply an equation by a nonzero constant
3. Add a multiple of an equation to another equation

The process above is also called 
Gaussian Elimination, after the German Mathematician Carl Friedrich Gauss (1777-1855)
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''Math is like a puzzle, or a game. There's one answer, and you're going on an adventure to find it. But there's many differient paths you can take, so it's really rewarding when you reach the goal. Sometimes, it takes a bit of insight. Other times, you can craft your own method. Even the most convulted methods can get you to the answer. No matter how ugly your solution may be, the fact that you constructed something yourself is something to be proud of.''
                             



~Fujimiya Kaori (Ishuukan Friends)

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