Solution:
Let x be the number of candles Kelly sold.
Let y be the number of candles Jakeya sold. Jakeya sold 5 more candles than Kelly;
[tex]y=x+5[/tex]
Also, let z be the number of candles Cindi sold. Cindi sold 1 less than twice as many candles as Kelly.
[tex]z=2x-1[/tex]
Altogether, they sold 52 candles;
[tex]x+y+z=52[/tex]
Hence, the equation that could be used to determine the number of candles that Kelly sold is;
[tex]x+x+5+2x-1=52[/tex]
CORRECT OPTION: B
