Bonjour,
Résoudre les inéquations:
a) -8x +1 > 5x -3
-8x-5x > -3-1
-13x > -4
x < -4 /-13
x < 4/13
S= ]-∞ ; 4/13 [
b) 5x +1 ≤ 4x +5
5x-4x ≤ 5-1
x ≤ 4
S= ] -∞ ; 4 ]
c) 4(x-1) < 5
4x-4 < 5
5x < 5+4
x < 9/5
S= ] -∞ ; 9/5 [
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Bonjour,
Résoudre les inéquations:
a) -8x +1 > 5x -3
-8x-5x > -3-1
-13x > -4
x < -4 /-13
x < 4/13
S= ]-∞ ; 4/13 [
b) 5x +1 ≤ 4x +5
5x-4x ≤ 5-1
x ≤ 4
S= ] -∞ ; 4 ]
c) 4(x-1) < 5
4x-4 < 5
5x < 5+4
x < 9/5
S= ] -∞ ; 9/5 [