Answer: -48
Explanation:
To solve for d in the equation -970 = -10 + 20d, we can follow these steps: Step 1: Isolate the term with d on one side of the equation. Start by moving the constant term -10 to the other side of the equation by adding 10 to both sides: -970 + 10 = -10 + 10 + 20d Simplifying the equation gives: -960 = 20d Step 2: Solve for d by isolating it. To isolate d, we need to divide both sides of the equation by 20: -960 / 20 = (20d) / 20 This simplifies to: -48 = d So, the value of d that satisfies the equation is -48. Alternatively, you can check this solution by substituting -48 back into the original equation and verifying that both sides are equal: -970 = -10 + 20(-48) Simplifying the equation gives: -970 = -10 - 960 This is true, so -48 is indeed the correct solution for d in the given equation. Therefore, d = -48.