va rog ajutati-ma....

3+27+49=30+49=79
14+38+2=14+40=54
25+15+7=40+7=47
11+17+13=11+30=41
26+23+24=50+23=73
39+19+41=80+19=99
Răspuns:
(3+27)+49=30+49=79
14+(38+2)=14+40=54
(25+15)+7=40+7=47
11+(17+13)=11+20=31
26+23+24=(26+24)+23=50+23=73
39+(19+41)=39+60=99
Explicație pas cu pas: