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Expressions & Equations: Solutions of Linear Equations
Systems of Equations with Substitution II
Description
Systems of Equations with Substitution II
Introduction
Have you ever needed to find two unknown values simultaneously, like the prices of two different snacks or the scores from two games? Systems of equations help us solve problems with more than one unkn...
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Transcript
James wants to solve a system of two linear equations: 2x + 3y = -3 and 2x = y + 5 to find the values of x and y.
His teacher suggests using the substitution method, which means replacing one term with an equivalent expression.
James first notices that the second equation defines 2x as y + 5.
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