@ @¶ìÿa@óÝy‹¾a@ u@ @QPP [Equations With More Than One Vriable] (.) . ( ) 3x + y = 5 . yx . (−1, 8) . (x, y ) (15, −40) 5 , 0 (1, 2) 1 , 7 (0, 5) 3 2 2 () . 3x + y = 5 . L ML