k + 9 greater than 12

Answer 1

I'm not sure what the question is, but if k + 9 is greater than 12, then what is k greater than?

Pretend k is zero. Is k + 9 > 12?

Pretend k is 7. Now, is k + 7 > 12?

So what must k be greater than?

Another way to approach the inequality is to add or subtract the same number from both sides.

So:

k + 9 > 12
implies k + 9 -1 > 12 -1
therefore k + 8 > 11

also k + 9 -4 > 12 -4
so k + 5 > 8

and so on.