-14х +16 -7 +2,1х + 1,5х -25 =
(-14+2,1+1,5)х + (16-7-25) =
-10,4х -16 = - 10 2/5 х- 16=
-10 2/5*(-10/27) - 16 =
52/5 *10/27 - 16 = 104/27 - 16 =
3 23/27 - 16 = - (16-3 23/27) = - (15 27/27 - 3 23/27) = - 12 4/27.
Объяснение:
-14х +16 -7 +2,1х + 1,5х -25 =
(-14+2,1+1,5)х + (16-7-25) =
-10,4х -16 = - 10 2/5 х- 16=
-10 2/5*(-10/27) - 16 =
52/5 *10/27 - 16 = 104/27 - 16 =
3 23/27 - 16 = - (16-3 23/27) = - (15 27/27 - 3 23/27) = - 12 4/27.
Объяснение: