Answer:
[tex]x=-7[/tex]
Step-by-step explanation:
subtract 3 from both sides
[tex]-6x=45-3[/tex]
[tex]-6x=42[/tex]
divide each term by 6
[tex]\frac{-6x}{-6} =\frac{42}{-6}[/tex]
[tex]x=\frac{42}{-6}[/tex]
simplify
[tex]x=-7[/tex]
The answer is x = -7. Step by step explanation is in the image below! :)