It might be -3 because 3•-3 is -9?
Answer:
i think it's c.
Step-by-step explanation:
sorry if this is wrong
Answer:
d=-4
Step-by-step explanation:
20 = –d + 16
Subtract 16 from each side
20-16 = –d + 16-16
4 = -d
Multiply each side by -1
-1 *4 = -1 * -d
-4 =d
The answer to the problem is c