Hello there again! :) :D
Answer:

<u><em>*The answer must have A POSITIVE SIGN ONLY!*</em></u>
Step-by-step explanation:
First, you subtract by 1 from both sides of an equation.

Add/Subtract by the numbers from left/right.


Then, you subtract by 8x from both sides of an equation.

Simplify equation.

Divide by -5 from both sides of an equation.

Divide by the numbers from left/right.

Final answer is → 
<em>Hope this helps you!</em>
<em>Have a nice day! :)</em>
<em>:D</em>
<em>-Charlie</em>
<em>Thank you! :)</em>