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  • 12-11-2020
  • Mathematics
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How many solutions does this equation have? –7z − 7 = –4z + 8

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mayie07
mayie07 mayie07
  • 12-11-2020
-7z - 7 = -4z + 8
-7z + 4z = 8 + 7
-3z = 15
-z = -5
z = 5
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