ANSWER
EXPLANATION
The given expression is
To find an expression for d in terms of a, b, and c, means we want to make d the subject of the relation.
This means that, we need to isolate d on one side of the equation while all other terms are on the other side.
We subtract from both sides of the equation to obtain,
We now divide through by -1, to get,
Or
The topic is change of subject
EXPLANATION
The given expression is
To find an expression for d in terms of a, b, and c, means we want to make d the subject of the relation.
This means that, we need to isolate d on one side of the equation while all other terms are on the other side.
We subtract from both sides of the equation to obtain,
We now divide through by -1, to get,
Or
The topic is change of subject