ElectricPavlov

1 x³     + 8x³   =   9 x³

.6x = 22

x = 36 2/3

.55 ( 36 2/3) =121/6

Hmmmmmm.....   is this perhaps 64 feet or something else ?

Since tigers and giraffes have the same number of feet and heads     g = t

62 feet =   2k  + 4 ( 2g )         

22 heads =  k + g + g = 22 = k + 2g    <===== multiply by -2 and add to top equation to get

18 = 4 g

Integers     x-1     x       x+1

(x+1)(x-1) =3x + 17

x^2 -1 -17-3x = 0

x^2 -3x - 18 = 0

(x-6)(x+3)                  x = 6     or -3            5 6 7           ( or    -4 -3 -2   <==== negative integers solution)

y coordinate is   - 1/2

a+b = 485

a-b = 303      add the two equations

2a = 788

a = 394 tons        now you can calc b   

f(a) = a^2-2a    = 8

         0 = a^2 -2a-8

         0 = (a-4)(a+2)          a = +4   or    -2

7x^2 + x - 5 = 0        ab = -5/7

https://web2.0calc.com/questions/how_35#r1

Ten kids make ten valentine's each = 100