I’m trying to follow this pattern to shape the neck of a sweater, but am at a complete loss for what the following means:
Shape Neck
Next Row (RS): K2, ssk, k6 (7, 7, 8, 8), sl next 7 (8, 8, 8, 9) sts to a holder; join a 2nd ball of yarn and k to last 4 sts, k2tog, k2 - 9 (10, 10, 11, 11) sts on each side.
Work both sides at the same time with separate balls of yarn.
Thisis my first ever sweater. I am doing the smallest size, so the numbers in brackets do not apply to me.
Thanks 
this is the pattern I’m following
You’ll be dividing the sweater at the neck to create the two sides/shoulders.
Making the smallest size…
Shape Neck
Next Row (RS): K2, ssk, k6, drop working yarn (1st ball), sl next 7 sts onto a holder (or spare needle or scrap yarn). Take a 2nd ball of yarn and k the next sts until 4 sts remain, k2tog, k2. You should have 18sts in total - 9 sts on each side separated by the sts on a holder.
Continue pattern working both sides (sets of 9sts) at the same time with separate balls of yarn.