1. **State the problem:** Solve the equation $X - 5 - 6X = 0$ for $X$. 2. **Combine like terms:** Group the $X$ terms together. $$X - 6X - 5 = 0$$ 3. **Simplify the expression:** $$-5X - 5 = 0$$ 4. **Isolate the variable term:** Add 5 to both sides. $$-5X - 5 + 5 = 0 + 5$$ $$-5X = 5$$ 5. **Solve for $X$ by dividing both sides by $-5$:** $$\cancel{-5}X = \frac{5}{\cancel{-5}}$$ $$X = -1$$ 6. **Final answer:** $$X = -1$$