timmy29 timmy29
  • 25-02-2018
  • Mathematics
contestada

[x÷(y–1)](−4)–[xy+(−3)]÷(−1) if x=−5, y=−2

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sqdancefan
sqdancefan sqdancefan
  • 25-02-2018
The result is 1/3.

_____
The first attempt in the attached picture has parentheses in the wrong place for the second term. This simplifies to
.. (-5/-3)*(-4) +(10 -3)
.. = -20/3 +7
.. = -(6 2/3) +7
.. = 1/3
Ver imagen sqdancefan
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