what is -4[2(x-7)+3]+20 simplified?

Question

I am currently racing a friend to see who can get the answer online first, so this looked like a good place to do it. you may now answer the question so that I may keep my KitKat bar. Thank you.

Answer 1

Apply P-E-M-D-A-S:

 

  -4[2(x-7)+3]+20 

  -4*(2*(x-7) + 3) + 20                [with appropriate operators]

       (    , , ,        )                        [do P first]

       ...  (x-7) ...                           [do P firs]

  -4 * (2x - 14 + 3) + 20              [M for multiply; distribute]

  -4 * (2x - 11) + 20                    [Add/Subtract; collect like terms]

   -8x + 44 + 20                          [again, Multiply; distribute]

    -8x + 64                                [Add; collect like terms]