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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

Choose the more precise measurement. 26.4 cm or 8.39 cm

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.