12 4 7 5 July 8, 2019 16 32 64 128 12 4 7 5 6 12 7 4 5 3 12 7 4 5x 8 29 12 4 7 x 5 12 4 7 8 5 12 2 4 5 7 4 7 5х )-( 12 20х 4 7 5x )-( 12 20x 4x 1 12 7 4 5 x 9 4 7 5х )-( 12 22х 5 14y 12 4 21y 7 5 5 14x 12 4 21x 7 5 4 7 x )= 12 5 2x 12 5 6x 4 )+ 7 x 6