Answer:
[tex]x=28[/tex]
Step-by-step explanation:
[tex]9-4\left(x-30\right)=17[/tex]
[tex]9-4\left(x-30\right)-9=17-9[/tex]
[tex]-4\left(x-30\right)=8[/tex]
[tex]\frac{-4\left(x-30\right)}{-4}=\frac{8}{-4}[/tex]
[tex]x-30=-2[/tex]
[tex]x-30+30=-2+30[/tex]
[tex]x=28[/tex]
