Final answer:
To solve the equation 2(d + 1) - 1 = 3, distribute the 2, subtract 1 from both sides, isolate the term with d, and divide by 2 to find that d = 0.5.
Step-by-step explanation:
To solve the equation 2(d + 1) - 1 = 3, let's follow these steps:
- Distribute the 2 into the parenthesis: 2 * d + 2 * 1 = 2d + 2.
- Subtract 1 from both sides: 2d + 2 - 1 = 3 - 1.
- Simplify both sides: 2d + 1 = 2.
- Subtract 1 from both sides to isolate the term with d: 2d = 1.
- Finally, divide both sides by 2 to solve for d: d = 1/2 or 0.5.
Thus, the answer to the equation is d = 0.5.