Question

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

Answer 1

The result is 1/3.

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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