Trouble understanding neckband

I don’t understand
Using back stitch , join right shoulder seam. With right side facing knit up 7 sets evenly along left side of neck, knit across stitches from front stitch holder , knit up 11 stitches along right side of neck, then knit across stitches from back stitch holder…46
Please help

Can you please give us a pattern link and pattern name?

“Knit up” is also a way of saying “pick up and knit” or “pick up” 7 stitches. If you pick up more or fewer sts, you can always correct the number on the next row.
This video may help. The neckband is also joined on the left shoulder but the idea is the same.