Respostas

2014-05-26T18:25:09-03:00
2x-1 = 7
2x = 7 + 1
2x = 8
x = 8/2
x = 4
3 4 3
  • Usuário do Brainly
2014-05-26T18:25:48-03:00
2X-1=7
2x=7+1
2x=8
x=8/2
 x-= 4 *-* .....................
1 5 1