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Mathematics, 08.03.2021 23:10 ajime

x + 3y = -9 3x + 4y = -9 2x+y=4 2x +y = 4 1) How can we get System B from System A? Choose 1 A А Replace one equation with the sum/difference of both equations Replace only the left-hand side of one ® equation with the sum/difference of the left-hand sides of both equations Replace one equation with a multiple of itself 12f​

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x + 3y = -9 3x + 4y = -9 2x+y=4 2x +y = 4 1) How can we get System B from System A? Choose 1 A А Re...
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