a fost răspuns

a) ab + bc + ca = 88;
b) ab + bc+ca=abc;
c) abc + cab + bca = 777;
d) ab + ac + ba + bc+ca + cb=110.​

Răspuns :

Supercool45ask

Răspuns:

a)11a+11b+11c=88/:11

a+b+c=8

b) 11a+11b+11c=abc/:11

a+b+c=abc:11

c)111a+111b+111c=777/:111

a+b+c=7

d) 22a+22b+22c=110/:22

a+b+c=5

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