To determine the value that makes the equation \(-5 = \frac{4 - 3x}{4 - 3x}\) undefined, we need to identify when the denominator in the fraction equals zero, since division by zero is undefined.
The expression in the denominator is \(4 - 3x\). We set it to zero and solve for \(x\):
\[ 4 - 3x = 0 \]
Solving for \(x\):
\[ -3x = -4 \] \[ x = \frac{4}{3} \]
So, the value that makes the equation undefined is \(\frac{4}{3}\).
Therefore, the correct response is 4/3.
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