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OpenStudy (anonymous):
7x - 3y = 4 2x - 4y = 1 Which of the following systems is not the same as solving the system shown? 28x - 12y = 16 and -6x + 12y = -3 14x - 6y = 4 and -14x + 28y = 1 -28x + 12y = -16 and 28x - 56y = 14
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OpenStudy (jack1):
solve ur original eqn for y solve each of ur possible solutions in terms of y which doesnt match?
OpenStudy (anonymous):
the second one is the incorrect one
OpenStudy (anonymous):
because the second equation should be -14x+28y=-7
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