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2
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2
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\frac{428-488}{-328+126+172}
Subtract 256 from 684 to get 428.
\frac{-60}{-328+126+172}
Subtract 488 from 428 to get -60.
\frac{-60}{-202+172}
Add -328 and 126 to get -202.
\frac{-60}{-30}
Add -202 and 172 to get -30.
2
Divide -60 by -30 to get 2.
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