To solve for x, we first need to combine like terms on each side of the equation.

12x + 6 = 5x - 1

Subtract 5x from both sides:

12x - 5x + 6 = 5x - 1 - 5x

7x + 6 = -1

Subtract 6 from both sides:

7x + 6 - 6 = -1 - 6

7x = -7

Divide by 7 to isolate x:

x = -1

Therefore, the solution to the equation is x = -1.