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Mathematics 11 Online
OpenStudy (anonymous):

solve the following systems of equations 4x+5y=7 -2x+9y=31

OpenStudy (anonymous):

To solve a system of equations, add (or subtract) both systems.

OpenStudy (anonymous):

would I have to multiply the second equation by 2 to eliminate the x once I add both equations?

OpenStudy (anonymous):

forget the second part do the Addition Property of Equality

OpenStudy (anonymous):

wrong I meant the Subtraction Property of Equality

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