QueenJahaida QueenJahaida

20-07-2017
Mathematics

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A student started solving the system of equations by elimination and made a mistake in solving x. What is the error?

A student started solving the system of equations by elimination and made a mistake in solving x What is the error class=

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choixongdong choixongdong

20-07-2017

answer is A.

step 1 , 16 was not multiplied by 9
should be

54x - 9y = 144

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