Respuesta :

First of all, we need to write over here the equation:

[tex]\begin{gathered} 9x-10+8x+5=90;\text{ we add the x's coefficient} \\ 17x-5=90 \\ 17x=90+5 \\ 17x=95 \\ x=\frac{95}{17}=5.59 \\ \end{gathered}[/tex]

Finally the answer is:

x=95/17