Hi there! The first answer is correct.
Let's solve this equation step by step!
[tex]cx - 4 \geqslant 7[/tex]
First add 4 to both sides of the equation
[tex]cx \geqslant 11[/tex]
Now divide both sides of the equation by c. Because c is a negative number, we mustn't forget to flip te sign.
[tex]x \leqslant \frac{11}{c} [/tex]
The first answer is correct.
~ Hope this helps you!