To solve for y in -2x - y = 10, we need to isolate y on one side of the equation.
Step 1: Start with the given equation -2x - y = 10.
Step 2: Add y to both sides of the equation. This cancels out the -y term on the left side. The equation becomes: -2x = y + 10.
Step 3: Next, subtract 10 from both sides of the equation to isolate y. The equation becomes: -2x - 10 = y.
Therefore, the solution for y is y = -2x - 10.