Réponses

2013-11-30T16:39:21+01:00
3(2x+5)+x = -2(x+8)+13
6x+15+x = -2x-16+13
7x+15 = -2x-3
9x = -18
x = (-18)/9
x = -2
2013-11-30T16:46:55+01:00
6x+15+x=-2x-16+13
6x+x+2x=-16+13-15
9x=-18
x=-18/9
x=-2