Is Brahamagupta was the first to solve equations using general methods?
Brahmagupta pioneered many calculations and computations in science and mathematics; often the ‘rules’ we now take for granted had not been formulated; so he experimented/proved certain ‘relationships’ Perhaps one of the more significant was the concept of ‘Zero’ during calculations. Rules of Brahmagupta The rules governing the use of zero appeared for the first time in Brahmagupta’s book Brahmasputha Siddhanta, written in 628. Here Brahmagupta considers not only zero, but negative numbers, and the algebraic rules for the elementary operations of arithmetic with such numbers. In some instances, his rules differ from the modern standard. Here are the rules of Brahamagupta: The sum of zero and a negative number is negative The sum of zero and a positive number is positive The sum of zero and zero is zero. The sum of a positive and a negative is their difference; or, if they are equal, zero A positive or negative number when divided by zero is a fraction with the zero as denominator Zero