Bonjour es ce que quelcun peut maaider svp :
Il faut resoudre les equations suivante :
1) x+7=0
2)x-8=2
3)3x=0
4)5x+2=0
5)-8x-5=-6
6)1/2x-4/5=6/3
7)6/7x+4/7=-2/7
8)3x+2=2x-5
9)-5x+4=6x+8
10)5-9x=-3x+12
merci
1) x=-7
donc les solutions de cette équation est -7 et 0
2) x = 8+2
x = 10
3) x = -3 donc les solutions est -3 et 0
4)5x= -2
x= -2/5 donc la solution est -2/5
5) -8x = 5-6
-8x = -1
x= -1/8
6)
x = -7
x = 2 + 8 = 10
3x = 0 <=> x = 0
4) 5x+2=0 <=> 5x = -2 <=> x = -2/5
5)-8x-5=-6 <=> - 8x = - 1 <=> x = 1/8
6)1/2x - 4/5 = 6/3 <=> 1/2x = 4/5 + 6/3 <=> 15/30x = 24/30 + 60/30 <=> 15x = 84 <=> x = 84/15
7)6/7x + 4/7= -2/7 <=> 6/7x = -6/7 - <=> 6x = -6 <=> x = -1
8)3x+2 = 2x-5 <=> 3x = -2x - 7 <=> 5x = -7 <=> x = -7/5
9)-5x+4 = 6x+8 <=> - 5x = - 4 + 6x + 8 <=> - 11x = 4 <=> x = - 4/11
10)5-9x=-3x+12 <=> - 6x = 7 <=> x = -7/6