Mathematics, 28.12.2019 04:31 ChessieGiacalone
Given the system of linear equations. choose all of the options that could be used to solve the system using addition
x + y =7
2x + y=
multiply the first equation by -1 and add the equations together.
multiply the second equation by -1 and the first equation by -1, then add the equations together.
multiply the second equation by -1 and add the equations together.
multiply the first equation by -2 and add the equations together.
multiply the first equation by 2 and the second equation by -1, then add the equations together
Answers: 1
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