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4a -b/2a+b=7/11 aflati a/b

Răspuns :

[tex]\frac{4a-b}{2a+b}=\frac{7}{11} \\\\ 11(4a-b)=7(2a+b) \\\\ 44a-11b=14a+7b \\\\ 44a-14a=7b+11b \\\\ 30a=18b \ \ \ |:6 \\\\ 5a=3b \\\\ \boxed{\frac{a}{b}=\frac{3}{5}}[/tex]