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(n-450:9)x3=2185-1879

Răspuns :

(n-450:9)x3=306
(n-50)x3=306
3x-150=306
3x=306+150
3x=456
x=456:3
x=152
(n-450:9) x3=2185-1879
(n-50) x3=306
n-50=306:3
n-50=102
n=102+50
n=152
Sper ca am fost de ajutor :)