For a pattern that calls for a 4 + 3 stitch count, you use any multiple of 4 and then add 3. In this case, she's calling for 39 stitches, which would be 36 + 3.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry