Answer :
2r - 9 > -6
2r - 9 = -6
2r = 3
r = 3/2 = 1.5
r > 1.5
9x-5 < -41
9x-5 = -41
9x = -36
x = -36/9 = -4
x < -4
3x + 13 > 7
3x + 13 = 7
3x = -6
x = -6/3 = -2
x > -2
4x + 3 > -17
4x + 3 = -17
4x = -20
x = -20/4 = -5
x > -5
7x - 4 < 10
7x - 4 = 10
7x = 14
x = 14/7 = 2
x < 2
