Mathematical

                                               3 – 1      =      2

        (>20 magnums + 12kg meat

               + 19kg carbs + 10kg fish

    + 5kg tomato sauce + 25ltr ale

     x 9 weeks x 35 friends) - reck      =      0

                                           GDP [1]      =      < 0

       1 + (6 x 4 trotters) + 4kg veg      =      want

                       2g microbes

                    3.5 lumens x thought      =      8261⁷ lumens

                               pair of sandals      =      0 sandals

                                      70miles

                                                  dad      =      hug + 5 kisses (5x)

   (Au x 4g) + (2 x sandal) + coat       =     son

                                    fat calf               =     roast beef

                      (spit x 3pi) x 20,000

                                                  beef³     =     stew

                                      celebration      =     1 + 2 + > 150

                                              speech      =      joyful

                                  lost/dead son      =      found/alive son

                                                  QED      =      Quad Erat

                                                                         Demonstrandum [2]

[1] Gross Domestic Product, a measure of the health of the national economy

[2] Latin for that which was to be proved; reckoned by cheeky schoolboys to stand for Quite Easily Done