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raspundetimi la asta 15+(x+2)+21=47

Răspuns :

15 + (x + 2) + 21 = 47

x + 2 + 36 = 47

x = 47 - 2 - 36

x = 9
15+(x+2)+21=47
15+(x+2)=26
x+2=11
x=11-2
x=9