Question

ayduaaaa por favor ahoritaaaa

Answer 1

Respuesta:

$\frac{a + b}{a - b} = \frac{11}{7} \\ \\ 7(a + b) = 11(a - b) \\ \\ 7a + 7b = 11a - 11b \\ \\ 7b + 11b = 11a - 7a \\ \\ 18b = 4a \\ 4a = 18b \\ a = \frac{18}{4} b \\ \\ a = \frac{9}{2} b \\ \\ a= 4.5b$