Respostas

2013-06-15T20:55:54-03:00

Ele quer saber o valor de x

8x-2 = 18+12

8x-2 = 30

8x = 30+2

x = 32/8

x = 4.

2013-06-15T21:03:53-03:00

8x - 2 = 18 + 12 

8x = 30 + 2 

8x = 32

x =32/8

 

x = 4