Помогите решить уровнение x+23=50.8+z=17.y+16= -18.u-25=0
X+23 = 50 x = 50-23 x = 27 8+z = 17 z = 17 - 8 z = 9 y+16 = - 18 y = -18 - 16 y = - 34 u - 25 = 0 u = 25