Sagot :
Bonjour
Résoudre les équations suivantes :
1. 5x + 6 = 2
5x = 2 - 6
x = -4/5
2. 13x − 9 = 160
13x = 160 + 9
x = 169/13
x = 13
3. −15x + 200 = x
15x + x = 200
16x = 200
x = 200/16
x = (8 * 25)/(8 * 2)
x = 25/2
1. 5x + 6 = 2
5x = 2 -6
5x = -4
x= -4/5
2- 13x - 9 = 160
13x = 160 + 9
13x = 169
x= 169 / 13
x= 13
3) -15x + 200 = x
200= x + 15 x
200= 16x
x = 200/16
x= 25/2
x= 12,5
5x = 2 -6
5x = -4
x= -4/5
2- 13x - 9 = 160
13x = 160 + 9
13x = 169
x= 169 / 13
x= 13
3) -15x + 200 = x
200= x + 15 x
200= 16x
x = 200/16
x= 25/2
x= 12,5