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afla numarul necunoscut (a×2+24)×2=848

Răspuns :

(a×2+24)×2=848
a×2+24=848:2
a×2+24=424
a×2=424-24
a×2=400
a=400:2
a=200

Coronita? :(
(ax2+24)x2=848(ax2+24)=848:2
ax2=424-24
ax2=400
a=400:2
a=200