Respuesta :

your answer is x=17 1/3

[tex]6.75 + \frac{3}{8} x = 13 \frac{1}{4 } \\ 6.75 + 0.375x = 13.25 \\ 0.375x = 6.5 \\ 0.125x = 2\frac{1}{6} \\ x = 17 \frac{1}{3} [/tex]