Question

30+5✖️{32:8+5✖️[40+4✖️(200:5-72:b)]}=1450​

Answer 1

Răspuns: b = 2

Explicație pas cu pas:

30 + 5 × {32 : 8 + 5 × [40 + 4 × (200 : 5 - 72 : b)]} = 1450

5 × {32 : 8 + 5 × [40 + 4 × (200 : 5 - 72 : b)]} = 1450 - 30

5 × {32 : 8 + 5 × [40 + 4 × (200 : 5 - 72 : b)]} = 1420

{32 : 8 + 5 × [40 + 4 × (200 : 5 - 72 : b)]} = 1420 : 5

32 : 8 + 5 × [40 + 4 × (200 : 5 - 72 : b)] = 284

4 + 5 × [40 + 4 × (40 - 72 : b)] = 284

5 × [40 + 4 × (40 - 72 : b)] = 284 - 4

5 × [40 + 4 × (40 - 72 : b)] = 280

[40 + 4 × (40 - 72 : b)] = 280 : 5

40 + 4 × (40 - 72 : b) = 56

4 × (40 - 72 : b) = 56 - 40

4 × (40 - 72 : b) = 16

(40 - 72 : b) = 16 : 4

40 - 72 : b = 4

40 = 4 + 72 : b

40 - 4 = 72 : b

36 = 72 : b

36b = 72

b = 72 : 36

b = 2

==pav38==

Baftă multă !