0-29.8-17.5+16.5-2.2+7.5

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0-29.8-17.5+16.5-2.2+7.5
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0-29.8-17.5+16.5-2.2+7.5
0-29.8-17.5+16.5-2.2+7.5

0-29.8-17.5+16.5-2.2+7.5
0-29.8-17.5+16.5-2.2+7.5=0-(29.8+2.2)+(16.5+7.5-17.5)=0-32+6.5=-25.5