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369-[(X-3x8)x2:8]=18 va rog repede

Răspuns :

(x-24)x2:8=369-18
(x-24)x2:8=351
(x-24)x2=351x8
(x-24)x2=2808
x-24=2808:2
x-24=1404
x=1404+24
=> x=1428

Sper ca te va ajuta. Succes!
369-[(X-3x8)x2:8]=18
(X-24)×2:8 = 369-18
(X-24)×2:8 = 351
(X-24)×2 = 351×8
(X-24)×2 = 2 808
X-24 = 2 808:2
X-24 = 1 404
X = 1 404+24
X = 1 428

Verificare:
1 428-24 = 1 404
1404×2 = 2 808
2 808:8 = 351
369 -351 = 18