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Eliminate a variableTechnique

Technique

Eliminate a variable

Scale to opposites, add, and one variable cancels

3 min 3 steps

Two equations, two unknowns, and a clean way to make one unknown drop out. I used to skip gym with far less planning.

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Signs and order of operationsFactKeep every sign and do the steps in order

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Solve a system of two linear equationsTacticCancel one variable, then answer what's asked