Explanation of how to solve a system of equations using the substitution method, explanation of why it's called the substitution method, and step-by-step explanation, as part of the 2x2 Systems of Equations course.
Complete 2x2 Systems of Equations Course:
• Sistemas de ecuaciones lineales 2x2 (Curso...
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0:00 Greeting
0:15 Remember
2:58 First step: Clear
5:38 Second step: Replace
6:29 Third step: Solve
8:15 Fourth step: Replace
10:25 Practice exercise