Mathematics, 25.06.2019 21:30 hgfddfg

Which expression is equivalent to 16x +42y? 1- 7(2x+6y)2- 6(3x+7y)3- 2(8x+21y)4- 4(4x+11y)

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Which expression is equivalent to 16x +42y? 1- 7(2x+6y)2- 6(3x+7y)3- 2(8x+21y)4- 4(4x+11y)...

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