Bonsoir,
7x-2x < -5 -3
5x > -8
x > -8/7
-3 + 6 ≤ 8x-5x
3 ≤ 3x
x ≥ 3/3
x ≥ 1
7x+7 > 5-2x
7x+2x > 5-7
9x < -2
x > -2/9
-5x +3 ≥ 2x -10
3+10 ≥ 2x +5x
13 ≥ 7x
x ≤ 13/7
