To determine when the equation \( -5 = 4 - 3x4 - 3x \) is undefined, let's first clarify the equation.
Assuming that the equation should be interpreted as \( -5 = 4 - 3x(4 - 3x) \) (given that there is a multiplication implied), we can explore the condition that leads to it being undefined.
An expression becomes undefined when there is division by zero. If there's a division by an expression involving \( x \), we need to find out what values of \( x \) cause that expression to equal zero.
However, in the current form, it seems there might not be an implicit division, and without clarifying the expression further and particularly checking for any divisions (e.g., if \( x \) directly appears in a denominator), it's not entirely clear if the phrasing of the question pertains to an undefined state.
Assuming you meant to check the factors for some possible divisive terms, it turns out the equation should be formed appropriately or another interference leading to undefined states should have been identified.
However, if this interpretation is incorrect and there are missing elements or context for the derivation of the original equation, it would be necessary to include them to move forward.
Please confirm or correct this equation or specify multiple meanings or interpretations, allowing for context to ascertain which \( x \) values cause the expression to be undefined.