To solve the equation \( 5(-4x + 5) = 4(-5x + 6) \), we will first distribute on both sides.
Starting with the left side: \[ 5(-4x + 5) = 5 \cdot -4x + 5 \cdot 5 = -20x + 25 \]
Now, for the right side: \[ 4(-5x + 6) = 4 \cdot -5x + 4 \cdot 6 = -20x + 24 \]
Now we rewrite the equation with the distributed values: \[ -20x + 25 = -20x + 24 \]
Next, we will try to isolate the variable. To do this, let's add \( 20x \) to both sides: \[ -20x + 20x + 25 = -20x + 20x + 24 \] This simplifies to: \[ 25 = 24 \]
Since 25 does not equal 24, this result indicates that there is no solution to the equation.
Thus, the answer is: A: no solution.