How to solve the equation of 1 / 2 = 1 / 6 + 1 / 3 Who answers first? Whose is the best answer

How to solve the equation of 1 / 2 = 1 / 6 + 1 / 3 Who answers first? Whose is the best answer

1/2x=1/2
x=1/2÷1/2
x=1

X-4 / 1 x = 37.5 x + 4 / 1 x = 37.5 solution

X-1 / 4 x = 37.5
3x = 37.5
X = 37.5 △ 3 / 4
x=50
X + 1 / 4 x = 37.5
5x = 37.5
X = 37.5 △ 5 / 4
x=30

It is known that the solution of 1 / 4 x = - 4 of the equation about X is 3 larger than that of 6x-k = 0 of the equation about X. find the solution of x-3 = 0 of the equation about X
The answer is - 34235 speed

x/4=4 x=16
6x-k=0 x=k/6
16-k / 6 = 3
k/6=13
k=78
Then: X / 78-3 = 0
x=78×3
x=234