To solve the equation
\[ \frac{5(x - 2)}{6} - x = 1 - \frac{x}{8}, \]
let's start by eliminating the fractions. We can do this by finding the least common multiple of the denominators. The denominators are 6 and 8, and the least common multiple (LCM) is 24. We will multiply each term of the equation by 24.
- Multiply through by 24:
\[ 24 \left(\frac{5(x - 2)}{6}\right) - 24(x) = 24\left(1\right) - 24\left(\frac{x}{8}\right). \]
- Simplifying each term, we get:
\[ 4 \cdot 5(x - 2) - 24x = 24 - 3x. \]
This simplifies to:
\[ 20(x - 2) - 24x = 24 - 3x. \]
- Distributing the 20:
\[ 20x - 40 - 24x = 24 - 3x. \]
- Combine like terms on the left side:
\[ (20x - 24x) - 40 = 24 - 3x, \] which simplifies to: \[ -4x - 40 = 24 - 3x. \]
- To isolate x, first add 3x to both sides:
\[ -4x + 3x - 40 = 24, \]
which simplifies to:
\[ -x - 40 = 24. \]
- Now add 40 to both sides:
\[ -x = 64. \]
- Finally, multiply by -1:
\[ x = -64. \]
Thus, the solution is
\[ \boxed{-64}. \]