If two angles are complementary, their measures add up to 90 degrees. Given that the measures of the two angles are \( (x + 2) \) and \( (2x - 4) \), you can set up the equation as follows:
\[ (x + 2) + (2x - 4) = 90 \]
You can simplify and solve this equation:
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Combine like terms: \[ x + 2 + 2x - 4 = 90 \] \[ 3x - 2 = 90 \]
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Add 2 to both sides: \[ 3x = 92 \]
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Divide by 3: \[ x = \frac{92}{3} \]
So, the equation representing that the two angles are complementary is:
\[ (x + 2) + (2x - 4) = 90 \]