Desafio 6-Racionais

-12		4
	0
-4

           Original

-12	8	4
16	0	-16
- 4	-8	12

         Resolvido

Contas:

1)    X + 0 – 12 = 0

X= 0 + 12

X= 12

2)    X – 12 – 4 = 0

X= 0 + 16

X= 16

3)    X + 4 + 12 =0

X= 0 – 16

X= -16

4)    X – 4 + 12 =0

X= 0 + 4 – 12

X= -8

5)    X – 8 + 0= 0

X= 0 + 8

X= 8