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fie:a+b+c+d=56,a:b=3,c:a=2,a=4x4.afla valuarea fiecarui numar

Răspuns :

a=4x4=16
c:a=2=>c=2a=>c=2x16=>c=32
a:b=3=>a=3b=>16=3b=>b=16:3=>b=5,33
16+5,33+32+d=56
d=56-53,33
d=2,66