a+b=600
a=600-b
[tex]\frac{a}{4}[/tex]=50+ [tex]\frac{b}{3}[/tex]
[tex]\frac{a}{4}[/tex]= [tex]\frac{150+b}{3}[/tex]
4(150+b)=3a
600+4b=3·600-b
600+4b=1800-b
4b+b=1800-600
5b=1200=>b= [tex]\frac{1200}{5}[/tex]=240
a+240=600=>a=600-240
a=360
Deci numerele sunt a=360; b=240
Sper să te ajute! ^_^
