Systems with no solutions

298 views · Published 1 October 2012 · 4:43 · Indexed 4 November 2026

Channel: Brian McLogan · 2012 · Education

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http://www.freemathvideos.com In this video series I show you how to solve a system of equations using substitution. When solving using substitution we need to take one equation and solve for a variable. Sometimes an equation will already have a variable isolated. If not it is helpful to choose the variable that has a one or negative one as a coefficient. Once we have a variable isolated. We take the expression that the variable equals and plug it in for the variable in the other equation. Now solving for one variable we find the first part of the solution. To find the second half of the solution we plug in our value of one variable into our isolated equation to find the value of the second variable.
g + 3h = 8 , (1/3)g  + h = 9

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