Solve systems by elimination

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What is the elimination method in solving systems of equations?

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

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How do you determine which variable to eliminate in a system of equations?

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Look for coefficients that can easily be made equal or opposite through multiplication, allowing for straightforward addition or subtraction.

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(-4, -2)

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(7, -1)

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(7, 0)

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(1, 5)

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x

Front

What is the first step in the elimination method?

Back

Align the equations so that corresponding variables and constants are in the same columns.

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

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Multiply one or both equations by a number to make the coefficients equal or opposite.

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What is the goal of the elimination method?

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To reduce a system of equations to a single equation with one variable, making it easier to solve.