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A base-10 integer \( n=4\triangle_9=\triangle0_7\) , where \(\triangle\) represents a single digit. What is the value of \( n?\)

 Sep 30, 2020
 #1
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4*9 + x = 7*x + 0 

 

6*x = 36

 

x = 6

 

n = 7*6 = 42

 Sep 30, 2020
 #2
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Correct! nice job.

Guest Sep 30, 2020

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