Mathematics, 12.10.2019 10:30 OzzyDaGod

Four expressions are shown below:

21x + 6
3(7x + 2)
18x + 9
3(6x + 3)

which two expressions are equivalent to 3(6x + 2 + x)?
a and d
c and d
a and b
b and c

Answers: 3

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Four expressions are shown below:

21x + 6
3(7x + 2)
18x + 9
3(6x + 3)...