3y 7 2y 9 July 8, 2019 16 32 64 128 6x 3y 7 9x 2y 6 3y 4 )( 2y 7 )+ 11y 9 9y 9 3y 7 2y 4 2x 3y 7 0 and 9x 2y 8 0 7 2y 9 6 3y 7 7 3y 9 13 2y 2 7+3y=9(y-2 1)