Answer:
[tex]x=5[/tex]
Step-by-step explanation:
[tex]8.6x+4.4x-11=54[/tex]
Combine Like Terms
[tex]13x-11=54[/tex]
Add 11 from both sides
[tex]13x=65[/tex]
Solve for x
[tex]x=\frac{65}{13}[/tex]