Final answer:
After simplifying the equation −7−19g=−12−19g−3, it becomes clear that −7 does not equal −15; therefore, the equation is not an identity. The correct answer is B) No, it is not an identity.
Step-by-step explanation:
To determine if the equation −7−19g=−12−19g−3 is an identity, we can simplify and solve it. An identity is an equation that is true for all values of the variable involved. In this case, both sides of the equation have the term −19g. If we add 19g to both sides of the equation, we are left with −7 = −12 − 3. Simplifying the right side results in −7 = −15. Since −7 does not equal to −15, this equation is not an identity. Therefore, the correct answer is B) No, it is not an identity.