Question

9x6+[7x9-56:8+(7x6-64:b)]=144​

Answer 1

Răspuns:

9 × 6 + [ 7 × 9 - 56 : 8 + ( 7 × 6 - 64 : b ) ] = 144

54 + [ 7 × 9 - 56 : 8 + ( 7 × 6 - 64 : b ) ] = 144

7 × 9 - 56 : 8 + ( 7 × 6 - 64 : b ) = 144 - 54

7 × 9 - 56 : 8 + ( 7 × 6 - 64 : b ) = 90

63 - 7 + ( 42 - 64 : b ) = 90

- 7 + ( 42 - 64 : b ) = 90 - 63

- 7 + ( 42 - 64 : b ) = 27

42 - 64 : b = 27 + 7

42 - 64 : b = 34

42 - 34 = 64 : b

8 = 64 : b

b = 64 : 8

b = 8