X y 3 2x 5y 12 July 8, 2019 16 32 64 128 X y 3 2x 5y 12 by substitution method X y 3 2x 5y 12 by elimination method X y 3 2x 5y 12 graphically 1 x y 3 2x 5y 12 The pair of linear equations x y 3 2x 5y 12 Draw the graph of x y 3 and 2x 5y 12 X+y 2 5+z xy