Answer:
x < 6
Step-by-step explanation:
[tex]4x-36 < -12[/tex]
[tex]4x-36+36 < -12+36[/tex]
[tex]4x < 24[/tex]
[tex]\frac{4x}{4} < \frac{24}{4}[/tex]
[tex]x < 6[/tex]
Hope this helps