Learn to solve a system of equations with no solution by substitution

The video tutorial demonstrates how to solve a system of equations using the substitution method. It explains the best scenarios for using substitution, such as when a variable is isolated or has a coefficient of 1. The tutorial walks through isolating a variable, substituting the expression into another equation, and solving the resulting equation. It concludes with a scenario where no solution exists, indicating parallel lines.

What is the best time to solve a system of equations using substitution?

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How do you isolate a variable when solving an equation?

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What expression represents the value of Y in terms of X?

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What happens when you substitute the value of Y into the other equation?

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What conclusion can be drawn if the two equations do not equal each other?

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