To simplify the expression \( 4x - 4 - 2x + 3 \), we can combine like terms.
Starting with the expression:
\[ 4x - 4 - 2x + 3 \]
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Combine the \( x \) terms: \[ 4x - 2x = 2x \]
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Combine the constant terms: \[ -4 + 3 = -1 \]
Putting it all together, we have:
\[ 2x - 1 \]
Therefore, the expression equivalent to \( 4x - 4 - 2x + 3 \) is:
2x - 1.