On October 10, the Miller family received 31 pieces of mail, consisting of magazines, bills, letters, and ads. If they received the same number of magazines as letters, three more bills than letters, and five more ads than bills, how many magazines did they receive?

Answer 1

m = magazines and letters
m+3 = bills
m+3+5 = m+8 = ads
so, m + m + m+3 + m+8 = 31