Question

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Answer 1

a+b+c=36
a+b=3b
a=2b
b+c=2a=4b
c=4b-b=3b
b+2b+3b=36
b=36:6
b=6
a=6x2=12
c=6x3=18
6+12+18=36

Answer 2

a+b+c=36
a+b=3b    de aici avem a=3b-b=>a=2b
b+c=2a=>c=2a-b=>c=2*2b-b=>c=4b-b=>c=3b


3b+3b=36
6b=36
b=36:6
b=6

a=2b=>a=2*6=>a=12
c=3b=>c=3*6=>c=18
verificare
a+b+c=36
12+6+18=36