To find the expression equivalent to \((13215)(-9x + 16)\), we will distribute \(13215\) to each term inside the parentheses:
\[ 13215(-9x) + 13215(16) \]
Now, we calculate each term:
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For the first term: \[ 13215 \cdot -9x = -118935x \]
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For the second term: \[ 13215 \cdot 16 = 211440 \]
Combining both results gives us:
\[ -118935x + 211440 \]
Thus, the expression equivalent to \((13215)(-9x + 16)\) is:
\[ -118935x + 211440 \]