18 4y 7 2 y ) 6 July 8, 2019 16 32 64 128 18 4y 7 2 y )+ 6 18y - 7y - 10 = 12 0 6(4y - 18) + 0 4(5 - 7y) при y = 2 4/13 0 6(2y - 11) = 0 4(y - 7) - 7 48
