27 – x = 27 + x
– x – x = 27 – 27
x = 0
30 + x = 32 – x
x + x = 32 – 30
2x = 2
x = 1
10 + x + 2 = 15 + x – 3
x – x = – 3 + 15 – 2 – 10
Уравнение имеет множество решений
27 – x = 27 + x
– x – x = 27 – 27
x = 0
30 + x = 32 – x
x + x = 32 – 30
2x = 2
x = 1
10 + x + 2 = 15 + x – 3
x – x = – 3 + 15 – 2 – 10
Уравнение имеет множество решений