3 7 2y 16 3y 5 y 2y 2 July 8, 2019 16 32 64 128 2(y 3 5) 7 3 6(2y 1) 2 7/16y+3 5/20y+1 3/8y 3 - 7y 5y - 3 2) 5 1/7 * (y - 7) - 3 3/7 * (14 - y) при y = 0 7