Réponses

2014-10-23T21:03:13+02:00
2(x+1)+4=8
2x+2+4=8
2x+6-8=0
=2x-2
=x=2/2=1

1-3x=2(5+x)
=1-3x=10+2x
=1-10=3x+2x
=-9=5x
=x5/-9

  • Utilisateur Brainly
2014-10-23T21:59:49+02:00
2(x + 1) + 4 = 8
2x + 2 + 4 = 8
2x = 8 - 2 - 4
2x = 2
x = 2/2
x = 1

1 - 3x = 2(5 + x)
1 - 3x = 10 + 2x
1 - 10 = 2x + 3x
- 9 = 5x
- 9/5 = x