In Exercises 49 and 50, the table shows the molecular masses (in atomic mass units) of three compounds. Use a linear system and Cramer's Rule to find the atomic masses of the indicated elements. (See Example 5.)
49. sulfur (S), chlorine (CI), calcium (Ca) Compound Sulfur dichloride Calcium chloride Calcium sulfide Formula Molecular Mass
SCl₂ 103 CaCl₂ 111 CaS 72