1. **State the problem:** Solve for $x$ in the equation $x - 0.3 = 35000$. 2. **Formula and rule:** To isolate $x$, add $0.3$ to both sides of the equation. This uses the addition property of equality which states if you add the same number to both sides, the equality holds. 3. **Intermediate work:** $$x - 0.3 + 0.3 = 35000 + 0.3$$ $$x = 35000.3$$ 4. **Explanation:** We added $0.3$ to both sides to cancel out the $-0.3$ on the left side, leaving $x$ alone. On the right side, we simply add $35000$ and $0.3$ to get $35000.3$. 5. **Final answer:** $$x = 35000.3$$