Question

Pff,nu reusesc deloc sa ii dau de capat!! Am incercat in toate felurile. 30 + 5 •{32 : 8 + 5 • [40 - 8 • (200 : 5 - 72 : x)]}= 250.

Answer 1

Răspuns:

x = 2

Explicație pas cu pas:

30 + 5 × {32 : 8 + 5 × [40 - 8 × (200 : 5 - 72 : x)]} = 250

5 × {32 : 8 + 5 × [40 - 8 × (200 : 5 - 72 : x)]} = 250 - 30

5 × {32 : 8 + 5 × [40 - 8 × (200 : 5 - 72 : x)]} = 220

32 : 8 + 5 × [40 - 8 × (200 : 5 - 72 : x)] = 220 ÷ 5

4 + 5 × [40 - 8 × (200 : 5 - 72 : x)] = 44

5 × [40 - 8 × (200 : 5 - 72 : x)] = 44 - 4

5 × [40 - 8 × (200 : 5 - 72 : x)] = 40

40 - 8 × (200 : 5 - 72 : x) = 40 ÷ 5

40 - 8 × (200 : 5 - 72 : x) = 8

8 × (200 : 5 - 72 : x) = 40 - 8

8 × (200 : 5 - 72 : x) = 32

200 : 5 - 72 : x = 32 ÷ 8

40 - 72 : x = 4

72 : x = 40 - 4

72 : x = 36

x = 72 ÷ 36

x = 2