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Help please, show steps
3n/7-1=1/8

User Whoblitz
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1 Answer

5 votes

Given:


(3n)/(7)-1=(1)/(8)

First, let's move the -1 to the right side. When we add
1 + (1)/(8), we get
(9)/(8).


(3n)/(7)=(9)/(8)

Now we can cross multiply, multiply (3n)(8) and (7)(9)


(3n)(8)=(7)(9)

Simplify the left side.


24n = (7)(9)

Simplify the right side.


24n=63

Divide both sides by 24 to isolate n.


(24n)/(24)=(63)/(24)

Simplify.


n=(21)/(8)

User Nathaniel
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5.6k points