Emily is making bead necklaces for her w friends. She made x necklaces and each necklace takes 2 beads. How many beads did Emily have?
Emily made x necklaces. 
Each necklace takes 2 beads. 

So, if we multiply x and 2, we will get the answer. 

2x = the number of beads 

Therefore, the answer is 2x.