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  • Utilizator Brainly
2014-09-28T16:54:54+03:00

a=3b=>a=3*3c=>a=9c
b=3c

a+b+c=130

9c+3c+c=130
13c=130
c=130:13
c=10

b=3c
b=3*10
b=30

a=9c
a=9*10
a=90
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