4 5 11 9 1 July 8, 2019 16 32 64 128 11 4 х 5 9 19 36 11 4 6y )+ 5 13y 1 )= 9 4 4 5 x 1 9 11 11 4 6x )+ 5 13x 1 )= 9 Subtract 11 20 from 4 5 add 9 10 to the answer 1 4 4 5 3 4x 11 9
