eg. w is the weight addition can be packed
Total weight is less than or equal to 22 kg. The inequality system will be
8,500 gr + 9,200 gr + w ≤ 22 kg
Change the weight into gram unit
8,500 gr + 9,200 gr + w ≤ 22 × 1,000 gr
8,500 gr + 9,200 gr + w ≤ 22,000 gr
Solve the inequality system
8,500 gr + 9,200 gr + w ≤ 22,000 gr
17,700 gr + w ≤ 22,000 gr
17,700 gr - 17,700 gr + w ≤ 22,000 gr - 17,700 gr
w ≤ 4,300
Rico can pack no more than 4,300 grams
