Final answer:
To solve for b in ab + c = d, you subtract c from both sides and then divide by a, giving the solution b = (d - c)/a.
Step-by-step explanation:
To solve for b in the equation ab + c = d, we want to isolate b on one side of the equation. Here's a step-by-step explanation:
- Subtract c from both sides of the equation to get ab = d - c.
- Divide both sides of the equation by a (assuming a ≠ 0) to isolate b.
- The result is the formula for b, which is b = (d - c)/a.
Therefore, the correct answer is A) b = (d - c)/a.