1) n + 1 > -2
Subtract 1 from the both sides,
n + 1 - 1 > -2 - 1
n > -3
2) T/-1 > -2
Multiply both sides by -1,
T/-1 * -1 < -2*-1 [ sign changed 'cause multiplied by -1 ]
T < 2
3) -4k - 1 = 47
Add 1 to the both sides,
-4k - 1 + 1 = 47 + 1
-4k = 48
Divide -4 from both sides,
-4k/-4 = 48/-4
k = -12
[Final answers are in bold letters ]
Hope this helps!
