Answer: Option C
all real numbers
Explanation:
We have the following equation

We must solve for the variable x

Apply the distributive property of the left side of equality


Add 6 on both sides of equality


Divide between -2x on both sides of the equation


The variable x is eliminated. This means that equality does not depend on the value of x. In other words, equality is satisfied for any value of x. Therefore the equation has infinite solutions
The answer is all real numbers