Answer:
We first must solve for x
[tex]9x-x+5x=260\\13x=260\\x=30[/tex]
When we have x, we put it in to the second equation
[tex]Bx=200\\\\B=\frac{200}{x} \\\\B=\frac{200}{30}\\\\B=\frac{20}{3}[/tex]
