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-1/2(7z+4)+1/5(5z-15)
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-1/2(7z+4)+1/5(5z-15)

User Goollan
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1 Answer

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-1/2(7z + 4) + 1/5(5z - 15) =
-7/2z - 2 + z - 3 =
-7/2z + 2/2z - 5 =
-5/2z - 5
User Semyon Vyskubov
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