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danielle is selling her handmade jewelry online yesterday she sold 2 bracelets and 4 necklaces for a profit of 118.today she made a profit of 132 by selling 4 bracelets and 4 necklaces how much profit does danielle earn from each piece

Respuesta :

Yesterday:
2b + 4n = 118
Today:
4b + 4n = 132

132 - 118 = (4b + 4n) - (2b + 4n)
14 = 2b
b = 7

2b + 4n = 118
2*7 + 4n = 118
4n = 118 - 14
4n = 104
n = 26

Bracelet: 7
Necklace: 26

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