-12x + 2 y = 8
-6x + y = -3

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

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Which rule describes the composition of transformations that maps △abc to △a”b”c