Question

Daca 5a + 4b / a + 3b =2 , atunci determinati valoarea raportului b/a

Answer 1

$\frac{5a+4b}{a+3b} =2 \\ \\ 5a+4b=2(a+3b) \\ \\ 5a+4b=2a+6b \\ \\ 5a-2a=6b-4b \\ \\ 3a=2b \\ \\ \frac{a}{b} = \frac{2}{3}$