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Va rog ajutati ma 25:5+a×2=25 multumesc.

Răspuns :

25/5+ax2=25
5+ax2=25
ax2=25-5
ax2=20
a=20/2
a=10
Acest "/" iseamna impartit

25:5+ax2=25
5+2a=25
2a=25-5
2a=20
a=20/2
a=10

Verificare: 25:5+10x2=5+20+25