Question

Which expression is equivalent to (-6+7)(-4)

Answer 1

Here is the answer:(+1) x (-4) = -4

Answer 2

(-6+7)(-4) encloses -6+7 within parentheses, so we MUST perform -6+7 first.  That comes to 1.  

Then we have  ( 1 )(-4), which equals -4  (answer).

Note:  Sounds as tho' several possible answers were given, but you haven't shared them.  Share all parts of every question in the future, OK?  Thx.