Mp.lumban gaol | -=[Ch+9+7+ ]-[(8~)-9-2+]​

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Mp.lumban gaol | -=[Ch+9+7+ ]-[(8~)-9-2+]​

Mp.lumban gaol | -=[Ch+9+7+ ]-[(8~)-9-2+]​

25

Penjelasan dengan langkah-langkah:

[7+(-6)-(-8)] – [(-4)+16+(-4)] = 25