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2014-09-12T18:18:26+03:00
3F+4B=530
F=2B
3*2B+4B=530
10B=530
B=53
F=2*53
F=106
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  • Utilizator Brainly
2014-09-12T18:21:24+03:00
3f+4b=530
f=2b
3x(2b)+4b=530⇒6b+4b=530⇒10b=530⇒b=53
f=2x53⇒f=106