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avatar+23 

Please solve ._.      The "/" means its a fraction

 

3/4n-18= 1/4n-4

 Jan 3, 2017
 #1
avatar+356 
+5

3/4n - 18 = 1/4n - 4

 

1/2n = 14

 

n = 28

 Jan 3, 2017
 #2
avatar+23 
0

Please solve ._. The "/" means a fraction

 

6+ 4/5b= 9/10b

 

I tried to solve it and I got 6=b. Please tell me if I am correct or wrong. 

 Jan 3, 2017
 #3
avatar+356 
0

Well lets see:

 

6+ 4/5b = 9/10b

 

6 = 1/10b

 

b = 60

 

Sorry but you are incorrect. Where did u go wrong??

NinjaAnswer  Jan 3, 2017
 #4
avatar+129849 
0

6+ 4/5b= 9/10b    multiply through by 10  to clear the fractions

 

10 (6)  + (10)(4/5)b  = 10 (9/10)b

 

60  +  (40/5)b  = 9b

 

60  + 8b    =  9b      subtract  8b from both sides

 

60  = 1b  

 

60  = b 

 

 

cool cool cool

 Jan 3, 2017

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