Hello!
Answer: x=-9 *The answer must have negative sign*
Explanation:
First you had to do is subtract by 4 from both sides of an equation.
[tex]4-4x-4=40-4[/tex]
Then, simplify.
[tex]-4x=36[/tex]
Divide by -4 both sides of an equation.
[tex]\frac{-4x}{-4}= \frac{36}{-4}[/tex]
Finally simplify.
[tex]36/4=9[/tex]
It change positive to negative sign.
[tex]x=-9[/tex]
Hope this helps!
Thanks!
Have a great day!
-Charlie