y 150x 14 1-x 15 9, y x 1/5, y x -1/4, y -0.4 25 +15.2, 4 x-y-1 3 1-y -2, y -1/x 2, x-4y 5 3x-12y 15, yjy-4x25+1x16, y 1 / 9 x 2y -5x-1, yjy-4x185+1x95, y 1/3x-1 x-3y 5, y -7x 5 6x 5y -4, yjy-4x150+1x70, x+5y 4 3x+15y -1, yjy-4*150+1*95, yjy-4*150+1*70, yljv-0.75/1kv-2 4x16, yjy-4x35+1x16, y- 4-3y /2y- 3+4y 1/5, x/6+y/15 4 x/3-y/12 19/4, yjy-4*25+1*16, yjy-4x2.5
y -1/4 x-15 2 75. There are any references about y -1/4 x-15 2 75 in here. you can look below.