+0  
 
-2
57
3
avatar+212 

(delted)

 Apr 7, 2020
edited by somehelpplease  May 8, 2020
 #1
avatar+111329 
+2

We have  that

 

4(9) + b =  7b + 0       simplify

 

36 + b  =  7b       subtract b from both sides

 

36  =  6b      divide both sidesby 6

 

6  = b

 

4((9)  + 6    =   7(6)  +  0

 

36 + 6  =   42

 

So.....n  = 42

 

 

cool cool cool

 Apr 7, 2020
 #2
avatar+932 
+2

If the triangle is x, then 4x base nine is equal to 36+x base 10 and x0 base 7 is equal to 7x base 10. Since they are equal that means tha36+x=7x, solving for x, we get x= 6. If the triangle is 6, we get 46 base 9 equals 60 base severn which equals 42 base 10 which is your answer.

 

Hope it helps!

 Apr 7, 2020
 #3
avatar+212 
+2

42 was right. Thanks for answering! I really appreciate it :D

 Apr 7, 2020

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