What is the value of x in C7HxO2?

In the molecular formula C7HxO2, the value of x represents the number of hydrogen atoms in the compound. For a typical fatty acid structure with 7 carbon atoms and 2 oxygen atoms, the hydrogen count can be determined by the formula CnH(2n+1)COOH for carboxylic acids. Therefore, for C7, x would equal 14, resulting in the molecular formula C7H14O2.