Solve By Elimination

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What is the elimination method in solving systems of equations?

Back

The elimination method involves adding or subtracting equations to eliminate one variable, making it easier to solve for the other variable.

Front

How do you eliminate a variable using addition?

Back

To eliminate a variable using addition, you can add two equations together if they are set up such that one variable will cancel out.

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Back

(2, 5)

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Back

(-2, -6)

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Back

(2, -3)

Front

What operation is used to eliminate a variable?

Back

Addition or subtraction can be used to eliminate a variable.

Front

What is the first step in the elimination method?

Back

The first step is to manipulate the equations so that the coefficients of one variable are opposites.

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Back

(3, 0)

Front

What do you do if the coefficients of the variable you want to eliminate are not opposites?

Back

You can multiply one or both equations by a number to create opposites.

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(2, 0)