The equation you are referring to seems to represent the process of photosynthesis. The balanced equation for photosynthesis is:
\[ \text{CO}_2 + \text{H}_2\text{O} + \text{light energy} \rightarrow \text{glucose} + \text{O}_2 \]
If we include ATP in a broader context, such as in cellular respiration or the overall energy process in plants, it might not fit directly into a single photosynthesis equation, as ATP is produced in the light reactions of photosynthesis. However, for the sake of filling in the blanks in your equation, it can be represented as:
\[ \text{CO}_2 + \text{H}_2\text{O} + \text{(light energy)} \rightarrow \text{glucose} + \text{O}_2 + \text{ATP} \]
So in the format you've provided:
CO2 + H2O + (+ heat) → glucose + O2 + ATP
This represents the consumption of carbon dioxide and water to produce glucose, oxygen, and ATP (the energy currency of the cell).