Sagot :
Bonjour,
n + n + 1 + n + 2 + n + 3 + 90
⇔ 4n + 6 = 90
⇔ 4n = 90 - 6
⇔ 4n = 84
⇔ n = 84/4
⇔ n = 21
donc 21, 22 , 23 et 24
Bonjour,
x+1
x+2
x+3
x+4
x+1+x+2 +x+3+x+4 =90
4x+ 10 =90
4x = 90 -10
4x= 80
x= 80/4
x= 20
21,22,23,24
Bonjour,
n + n + 1 + n + 2 + n + 3 + 90
⇔ 4n + 6 = 90
⇔ 4n = 90 - 6
⇔ 4n = 84
⇔ n = 84/4
⇔ n = 21
donc 21, 22 , 23 et 24
Bonjour,
x+1
x+2
x+3
x+4
x+1+x+2 +x+3+x+4 =90
4x+ 10 =90
4x = 90 -10
4x= 80
x= 80/4
x= 20
21,22,23,24