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Solve a system of linear equations using substitution

Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of ...
YouTube on MSN

Using substitution to solve a system when multiple variables have a coefficient of 1

Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of ...
BBC

How to solve simultaneous equations

We have looked at how to solve equations with one unknown value, but what happens when there are two unknown values? An equation with two unknown values will have infinitely many solutions. or \(x=100 ...