Let's solve the equation step by step.
The equation you have is:
\[ 20x - 15x - 6x = -23 + 12 - 35 \]
First, simplify the left side:
\[ 20x - 15x - 6x = (20 - 15 - 6)x = -1x = -x \]
Now simplify the right side:
\[ -23 + 12 - 35 = -11 - 35 = -46 \]
Now we have:
\[ -x = -46 \]
To solve for \( x \), multiply both sides by -1:
\[ x = 46 \]
So, the solution to the equation is:
\[ x = 46 \]
