16 of his stamps are from Africa, since 1/4 of 64 is 16. If I subtract his 28 from Europe and Africa (16 plus 12 equals 28) from his original 64, I am left with 36 stamps. 36/64 is simplified to 9/16. So 9/16 of Terrence's stamps are from Asia.
4 + 2x = 7
2x = 7 - 4 = 3
x = 3/2 = 1.5 inches
Think of absolute value and inverse operation, +72 to 72 and 24
Associative,commutative and distributive
