Question

5b+4f=300 método Cramer​

Answer 1

Respuesta:

5b + 4f = 300

5b + 4f - 4f = 5b

5b = 300 - 4f

$\frac{5b}{5}=\frac{300}{5}-\frac{4f}{5}$

$\boxed{b=\frac{300-4f}{5}}$

Saludos...