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 If the formula is (3*n)+(-6)and the answer is 15 what is n

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If the formula is (3*n)+(-6)and the answer is 15 what is n. HELP

 Oct 1, 2014

Best Answer 

 #1
avatar+130511 
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3n - 6 = 15     add 6 to both sides

3n = 21          divide both sides by 3

n = 7

 

 Oct 1, 2014

1+0 Answers

 #1
avatar+130511 
+5
Best Answer

3n - 6 = 15     add 6 to both sides

3n = 21          divide both sides by 3

n = 7

 

CPhill Oct 1, 2014

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