Solve a system of two linear equations in two variables by graphing.
Solve a system of two linear equations in two variables using the substitution method and the elimination method.
Use systems of two linear equations to solve applied problems.
A system of equations is composed of two or more equations considered simultaneously. For example,
is a system of two linear equations in two variables. The solution set of this system consists of all ordered pairs that make both equations true. The ordered pair is a solution of the system of equations above. We can verify this by substituting 2 for x and for y in each equation.
Solving Systems ...
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