Libby and Christi are making centerpieces for an upcoming school dinner and dance. Libby has already made 8 centerpieces, and Christi has already made 12 centerpieces. Christi can make 4 centerpieces in one hour, and Libby can make 5 centerpieces in one hour. Which equation can be used to determine how many additional hours, h, it will take for Christi and Libby to have made the same number of centerpieces?
h = (5 × 8) + (4 × 12)
5h + 12 = 4h + 8
5h + 8 = 4h + 12
5h + 4h = 12 + 8

Question

Libby and Christi are making centerpieces for an upcoming school dinner and dance. Libby has already made 8 centerpieces, and Christi has already made 12 centerpieces. Christi can make 4 centerpieces in one hour, and Libby can make 5 centerpieces in one hour. Which equation can be used to determine how many additional hours, h, it will take for Christi and Libby to have made the same number of centerpieces?
   h = (5 × 8) + (4 × 12)  
   5h + 12 = 4h + 8  
   5h + 8 = 4h + 12  
   5h + 4h = 12 + 8