Shall I solve them too? Multiplying (2) by 7.8 and subtracting (1) from it gives, 7.8x+7.8y=50*7.8 7.8x+4.3y=50*5.14 ================ 3.5y=50(7.8-5.14) or y=(50*2.66)/3.5= 38 From eqn (2) x=50-38=12 Therefore, x=12 lbs y=38lbs