Solution 8.5 + 4 (1-2.5k) = - 24.5

8.5 + 4 (1-2.5k) = - 24.5

Use distributive property

8.5 + 4 - 10k = - 24.5

Add 4 to 8.5

12.5 - 10k = 24.5

Subtract 12.5 from both sides

-10k = 12

Divide - 10 on both sides

Final Answer: - 12/10 or - 1 2/10 or - 1 1/5 * All answers are equivalent to each other.