Question

ce numere ascund literele afla-le apoi calculează a+a=14..a+b+c=91..b+b+b=18..a-b+c=...c+c+c=45...c-a-b=...c+a-b =.... C+b-a=

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Answer 1

Răspuns:

a=14:2. a=7

b=18:3. b=6

c=45:3. c=15

c-a-b=15-7-6=2

c+a-b=15+7-6=16

c+b-a=15+6-7=14