а) X = 78.2 - 39.7X = 38.5
б) У = 27.5 + 45.9У = 73.4
в) (X + 38.4) - 76.7 = 19.6X + 38.4 - 76.7 = 19.6X - 38.3 = 19.6X = 19.6 + 38.3X = 57.9
а) X = 78.2 - 39.7
X = 38.5
б) У = 27.5 + 45.9
У = 73.4
в) (X + 38.4) - 76.7 = 19.6
X + 38.4 - 76.7 = 19.6
X - 38.3 = 19.6
X = 19.6 + 38.3
X = 57.9