Which of the following expressions are equivalent to 2x + 4? Select three that apply.

A
6x
B
13(18x)
C
13(6x+12)
D
23(3x+6)
E
2(x+4)
F
4(12x+1)

learn how to type fractions!

1/3 * 6 = 2 and 1/3 * 12 = 4
So C is one choice
Now try the others.