Answer: d = 2
Explanation:
To solve for 'd', isolate it.
To isolate it, we will first add 6 to both sides:
d - 6 = -4
d = -4 + 6
d = 2
Checking Your Solution
To check your solution, plug in 2 for d in the equation.
d - 6 = -4
2 - 6 = -4
-4 = 4

Therefore, d = 2; our solution has been confirmed.