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a fost răspuns

a+32-10+7=57: 33+b-22-4=44: 3+5+7+9+c=48; d+7+5-6+4-9+8-5=5; 10+e+4-5+6-3-2=12

Răspuns :

a+32-10+7=57
a=57-32+10-7
a=67-39,a=28
33+b-22-4=44
b=44-33+22+4
b=70-33=37
3+5+7+9+c=48
24+c=48,c=48-24,c=24
d+7+5-6+4-9+8-5=5
d+24-20=5
d+4=5,d=5-4,d=1
10+e+4-5+6-3-2=12
20+e-10=12
10+e=12,e=12-10,e=2