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Daca a+b=64 si a supra b=3 supra 5 va rog sa-mi explicati

Răspuns :

a+b=64
a/b=3/5
5a=3b
a=3b/5
3b/5+b=64
3b/5+5b/5=320/5
8b=320
b=320/8=40
a=64-40=24
24/40=3/5(simplifici prin 8)