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402+[1.002:3-(100+a)×2]:14=408
URGENT DAU COROANA!​


Răspuns :

Răspuns:

402+[1.002:3-(100+a)×2]:14=408

[1002:3-(100+a)×2]:14=408-402

[1002:3-(100+a)×2]=6×14

334-(100+a)×2=84

(100+a)×2=334-84

100+a=250:2

a=125-100

a=25

Răspuns:

402 + [ 1002 : 3 - ( 100 + a ) × 2 ] : 14 = 408

1002 : 3 - ( 100 + a ) × 2 : 14 = 408 - 402

1002 : 3 - ( 100 + a ) × 2 : 14 = 6

334 - ( 100 + a ) × 2 : 14 = 6

334 - ( 100 + a ) × 2 = 6 × 14

334 - ( 100 + a ) × 2 = 84

334 - 84 = ( 100 + a ) × 2

250 = ( 100 + a ) × 2

250 : 2 = 100 + a

125 = 100 + a

a = 125 - 100

a = 25