Pattern help

[HelplessInSeatle]

Here is what it says in my pattern:

1. 15 DC then 5 DC then 2DCtog for 20 stitches (to decrease by 10 stitches) then 5 DC then 15 DC (50), ch 2          I am confused, why would they not say 20 DC? Why say 5DC then 15 DC?

[bgs]

Did you give us the row in its entirety EXACTLY as written?  Placement of commas and other punctuation is critical in deciphering a pattern.  There are a lot of patterns out there that do not conform to generally accepted standards and they can be tough to figure out.  You often have to look at the previous row and the next row to see how things fit along with studying any supplied photos.