Can you help me plz!!!!

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asked Apr 4, 2018 76.2k views

2 votes

Can you help me plz!!!!

Mathematics
middle-school

Mark Irvine asked

by Mark Irvine

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2 Answers

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the first one is not and the third one is and two is and the fourth one is not

Stan Sokolov answered Apr 5, 2018

by Stan Sokolov

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4 votes

First one, equivalent. (because two times 9z is eighteen z and two times 9w is eighteen w. And eighteen z plus 12z is thirty) second one is equal for similar reasons. Third one is also equal. The last one is not equal.

Amol Kolekar answered Apr 8, 2018

by Amol Kolekar

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