She has 16 bracelets. The number of earrings is 2 times the number of necklaces. she has 43 pieces of jewelry in all. How many of eac piece of jewelry does she have?
x = number of necklaces
2x = number of earrings
16 + x + 2x = 43
solve for x
2x = number of earrings
16 + x + 2x = 43
solve for x