Any number that makes an equation true is a "solution of an equation" it id a solution....(i hope this helps) *smiles*
He has to buy 4 packs. If you divide 23 by 6, you get 3.833 but you can’t buy a fraction of a pack so you have to round up and buy 4 packs. Hope this made sense; I can explain further if needed!
Calculator lolololol nah joking first