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Carla68
a fost răspuns

se da a/b = 4 a-b =600

Răspuns :

[tex]a/b=4 =)a=4b\\ \\ a-b=600 \\ \\ 4b-b=600 \\ \\ 3b=600 \\ \\ b=600/3=200 \\ \\ a=200*4=800[/tex]
a/b=4=>a=4b
a-b=600=>4b-b=600=>3b=600=>b=600:3=>b=200
a=4·200=800