Respuesta :
Do parenthesis first.
72 - 63 = 9, simplifies to:
6 [ 4 * (9) ÷ 3]
multiply 9 and 4, which is 36, divide that by 3, which equals, 12
6 [12]
12*6 = 72
72 - 63 = 9, simplifies to:
6 [ 4 * (9) ÷ 3]
multiply 9 and 4, which is 36, divide that by 3, which equals, 12
6 [12]
12*6 = 72