Please i really need help

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*