3 1/12+ 1/6 = 3 1/12 + 2/12 = 3 3/12 = 3 1/4
50,75,100,125,150,175,200,225,250,275,300 и т.д.
2 2/3 * ( z - 1/2 ) = 3 1/5 * ( z + 1/3)
8/3 *( z - 1/2 ) = 16/5 * ( z + 1/3)
8/3z - 8/6 = 16/5z + 16/15
8/3z - 16/5z = 16/15 + 8/6
40/15z - 48/15z = 16/15 + 20/15
-8/15z = 36/15
z = -36/15 * 15/8
z = -4,5
(-0,5)*(-2,125)*(-0,8)+9,35=8,5
(-5,4)*3,125*(-0,4)-32=-25,25