1) 165,64 - (a - 12,5) = 160,54165,64 - a + 12,5 = 160,54
2) 278,74 - (6,5 - b) = 276,84278,74 - 6,5 + b = 276,84b + 272,24 = 276,84b = 276,84 - 272,24b = 4,6
Ответ: a = 17,6, b = 4,6.
1) 165,64 - (a - 12,5) = 160,54
a + 178,14 = 160,54a = 160,54 - 178,14a = -17,6165,64 - a + 12,5 = 160,54
a = 17,6
2) 278,74 - (6,5 - b) = 276,84
278,74 - 6,5 + b = 276,84
b + 272,24 = 276,84
b = 276,84 - 272,24
b = 4,6
Ответ: a = 17,6, b = 4,6.