Eight more than four times a number is -12

Eight (8) more than (addition) four (4) times (multiplication) a number (x) is (=) -12

4x + 8 = -12    Subrtract 8 from both sides
      4x = -20   Divide both sides by 4
        x = -5

The product will have 102 zeroes since if you multiply any number like 1000,10, 10000, etc. then you just add zeroes to the end. If you multiplied a googol and 10 together, you add two more zeroes to the end of the number googol, making it have 102 zeroes.