When linear equations used for first time?

Linear equations have been used for thousands of years, with their origins traceable to ancient civilizations such as the Babylonians around 2000 BCE, who solved simple linear equations in their mathematical texts. However, the formal development of linear algebra as a distinct mathematical discipline began much later, particularly in the 17th century with the work of mathematicians like René Descartes and Isaac newton. Their contributions laid the groundwork for the systematic study of linear equations and their applications in various fields, including science and engineering.