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15+(x+2)+21=47. Va multumesc!

Răspuns :

Bibisofi
15+(x+2)+21=47
15+(x+2)=47-21
15+(x+2)=26
x+2=26-15
x+2=11
x=11-2
x=9
Raspuns:x=9
Alegriafrumusica
15+(x+2)+21=47
15+(x+2)=47-21
15+(x+2)=26
x+2=26-15
x+2=11
x=11-2
x=9
SPER CA TE-AM AJUTAT!:3:)))))))))))))

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