1. **State the problem:** We are given two angles, $y$ and $68^\circ$, that are adjacent and together form a right angle (which is $90^\circ$). 2. **Formula used:** The sum of angles that form a right angle is $90^\circ$. So, we use the formula: $$y + 68^\circ = 90^\circ$$ 3. **Solve for $y$:** $$y = 90^\circ - 68^\circ$$ 4. **Calculate:** $$y = 22^\circ$$ 5. **Explanation:** Since $y$ and $68^\circ$ add up to $90^\circ$, subtracting $68^\circ$ from $90^\circ$ gives the value of $y$. This is because angles on a straight line or forming a right angle sum to $90^\circ$. **Final answer:** $$y = 22^\circ$$