Final answer:
The value equivalent to ? –7 –1 1 7 is C. 0.
Step-by-step explanation:
To find which value is equivalent to ? –7 –1 1 7, we need to perform the given operation. The operation here is subtraction. If we subtract 7 from -7, we get -14. If we subtract 1 from -7, we get -8. If we subtract 7 from 1, we get -6. Finally, if we subtract 7 from 7, we get 0. Therefore, the value equivalent to ? –7 –1 1 7 is C. 0.