Respostas

  • Usuário do Brainly
2013-10-10T00:58:41-03:00
Mmc é 2

3x - 10x = - 14
-7x = - 14 .(-1)
7x = 14
x = 14/7
x = 2
1 3 1
2013-10-10T00:59:44-03:00
3x/2-10x/2=-7
-7x/2=-7
-14=-7x(-1)
7x=14
x=14/7

logo x=2