Question

Daca a supra b = 3 supra 5 , atunci 3a-b supra 2a-b = ?

Answer 1

$\frac{a}{b} = \frac{3}{5} => a= \frac{3b}{5}$

$\frac{3a-b}{2a-b} =\frac{3 \frac{3b}{5} -b}{2 \frac{3b}{5} -b} = \frac{4b}{b} =4$