Решите уравнение
1) x - 5 * (0,8x - 1,2) = 7,2
2) -(5x - 8) = 25 - ( 11x - 19)
3) 3/4x - 1,25 = 9/8x - 1/8
4) 1/5 (5/9x + 5) - 1/7 ( 7/6x + 2 1/3) = 2

taroslav    2   29.04.2020 18:59    0