Question

решите уравнение 1/6а-1/2=3-1/2а

Answer 1

1/6а-1/2=3-1/2а1/6a + 1/2a = 3 + 1/2
1/6a + 3/6a = 18/6 + 3/6

a + 3a = 18 + 3
4a = 21                      a = 5,25