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What is the sum of the positive integers that are solutions of $-3n +3 >-11?$

 May 9, 2018

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 #1
avatar+21869 
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What is the sum of the positive integers that are solutions of $-3n +3 >-11?$

 

\(\begin{array}{|rcll|} \hline -3n+3 &\gt& -11 \quad & | \quad -3 \\ -3n &\gt& -14 \quad & | \quad :(-3) \\ n &\color{red}\lt& \frac{-14}{-3} \\ n &\lt& \frac{14}{3} \\ n &\lt& 4.\bar{6} \\ \hline \end{array} \)

 

positive integers\(n= 1,2,3,4\)

sum: \(1+2+3+4 =\mathbf{ 10}\)

 

laugh

 May 9, 2018
 #1
avatar+21869 
+2
Best Answer

What is the sum of the positive integers that are solutions of $-3n +3 >-11?$

 

\(\begin{array}{|rcll|} \hline -3n+3 &\gt& -11 \quad & | \quad -3 \\ -3n &\gt& -14 \quad & | \quad :(-3) \\ n &\color{red}\lt& \frac{-14}{-3} \\ n &\lt& \frac{14}{3} \\ n &\lt& 4.\bar{6} \\ \hline \end{array} \)

 

positive integers\(n= 1,2,3,4\)

sum: \(1+2+3+4 =\mathbf{ 10}\)

 

laugh

heureka May 9, 2018

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