i have a question that reduces to the following:
22S + 16B = 650
8S + 32B = 760
what is S - B?
of course, one way is to do substitution, etc. however, does anyone have a really smooth way to do this?
22S + 16B = 650
8S + 32B = 760
what is S - B?
of course, one way is to do substitution, etc. however, does anyone have a really smooth way to do this?
