Calcmathlete
Find the solution set of the inequality: 2x+5+4x+7<30



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Calcmathlete
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Please show all work!

ReiKacanja
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6x+12<30
6x<18
x<3

Calcmathlete
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That's not an answer choice

Calcmathlete
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Someone help!!!!!

pokemon23
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aviation hs for the win ;D

ReiKacanja
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lol, Wat, it is right. Answer is x<3. 100% sure

Calcmathlete
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I checked the answer key. The answer is 7≤x≤3 _

ReiKacanja
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then are u sure the question is 2x+5+4x+7<30

Calcmathlete
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Wait, no ≤. Just <

Calcmathlete
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Yes

ReiKacanja
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ohhh i see. if you graph it, you find that x intercepts are 3 and 7 therefore x is between 7  3

pokemon23
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your a ninth grade right rei

Calcmathlete
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Oh. I see. It splits into two inequalities because you can flip the sign and negate the second part.

ReiKacanja
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yeah and @pokemon23 yes im a ninth grader, u?

pokemon23
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same

ReiKacanja
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what school u go to?

pokemon23
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same hs

ReiKacanja
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:D message me

pokemon23
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i join the aviation lol

pokemon23
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101

Calcmathlete
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Hey Rei, are you good at logarithms?

ReiKacanja
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no, my nine year education does not cover logarithms

Calcmathlete
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Alright. Thanks for the help. :)

ReiKacanja
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No problem

Taufique
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@Calcmathlete

Calcmathlete
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Thank you

Taufique
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welcome...