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PAIR OF LINEAR EQUATIONS IN TWO VARIABLES
ncert.nic.in(A) Main Concepts and Results • Two linear equations in the same two variables are said to form a pair of linear equations in two variables. • The most general form of a pair of linear equations is a 1 x + b 1 y + c 1 = 0 a 2 x + b 2 y + c 2 = 0, where a 1, a 2, b 1, b 2, c 1,c 2 are real numbers, such that 2 2 22 ab a b11 22+ ≠ +≠0, 0. • A pair of linear equations is consistent if ...