A display has 6
66 packs of marbles with a total mass of
629

g
629g629, start text, g, end text. The packaging of each pack has a mass of
2
3

g
3
2

gstart fraction, 2, divided by, 3, end fraction, start text, g, end text and each marble has a mass of
4
1
2

g
4
2
1

g4, start fraction, 1, divided by, 2, end fraction, start text, g, end text.
Which equation can we use to determine
m
mm, the number of marbles per pack?