Question

For what values of a is the value of the binomial 2a−1 smaller than the value of the binomial 7−1.2a?

Answer 1

To solve the problem shown bove you must apply the proccedure shown below:

 1. You have that:

 2a-1<7−1.2a
 2a+1.2a<7+1
 3.2a<8
 a<8/3.2
 a<2.5

 2. Therefore, for what values of a is the value of the binomial 2a−1 smaller than the value of the binomial 7−1.2a?

 As you can see above, the answer for this question is:

 All the values of a between -∞ and 2.5

Answer 2

I actually got this answer from the other guy who answered here : Carlosego.

He had the right answer but thought about it too much and added some extra information that lead the answer off track. If you went back to what "a" is, you would get a<2.5.