Respostas

  • Usuário do Brainly
2014-07-18T01:30:09-03:00
1+3x= 16
3x=16-1
3x=15
x=15/3
x=5
2x-4 =2
2x=2+4
2x=6
x=6/2
x=3
x-1=5/6
x=5/6+1/1
x= 11/6