Answer: d = 2
Step-by-step explanation: In this problem, our variable d appears on both sides of the equation. In this situation, in order to to solve for d, our goal will be to put our d terms together on one side of the equation and leave our number on the other side of the equation.
We can put the terms 16d and 5d together even though they appear on different sides of the equation. We can do that by subtracting 5d from both sides of the equation. On the left, 16d - 5d simplifies to 11d. On the right, 5d - 5d cancels and we're left with 22.
So now we have the equation 11d = 22.
Now we have the situation that we're looking for. Our x's term are together on one side of the equation and or number on the other and all we have to do to solve for d is divided by 11 on both sides of the equation and d = 2.