Answer:
f the coefficient of one of the variables is 1 then use the Substitution Method otherwise use the Addition Method. In the Addition Method, the two equations are added together to eliminate one of the variables.Step-by-step explanation:
If the coefficient of one of the variables is 1 then use the Substitution Method otherwise use the Addition Method. In the Addition Method, the two equations are added together to eliminate one of the variables.
Explanation:
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