Let's solve the equation step by step.
Given the equation: \[ 5y - 10 = -25 \]
Step 1: Add 10 to both sides of the equation. \[ 5y - 10 + 10 = -25 + 10 \] \[ 5y = -15 \]
Step 2: Divide both sides of the equation by 5. \[ \frac{5y}{5} = \frac{-15}{5} \] \[ y = -3 \]
So, the solution is: \[ y = -3 \]
From the provided options:
- y = -3
- y = 3
- y = 7
- y = -7
The correct answer is: y = -3