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

Can you please explain this in detail that a not math person can understand.

thank you

 Mar 22, 2016
 #1
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+5

We're actually solving this :

 

2a - 1 <   7 - 1.2 a        add 1.2a to both sides

 

3.2a - 1 <  7            add 1 to both sides

 

3.2a <  8            divide both sides by 3.2

 

a < 8/3.2 

 

a < 2.5

 

So....all values of "a" less than 2.5 solve the inequality 

 

 

 

cool cool cool

 Mar 22, 2016

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