Final answer:
There is no value of x that makes the equation true.
Step-by-step explanation:
To solve the equation 12(12+8)−(+6)=−13(12−6), we can start by simplifying both sides of the equation:
Left side: 12(20)−(+6) = 240−(+6) = 240−6 = 234
Right side: −13(6) = −78
Now, we have 234 = −78.
Since this is not true, there is no value of x that makes the equation true. So, the correct answer is None of the above.