What is the answer to 2(((n+1)!)/(n!))=40 ?

The answer to 2(((n+1)!)/(n!))=40 is n=19

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2(((n+1)!)/(n!))=40

2 (\frac{( n + 1 ) !}{n !}) = 40

n = 19

Solution steps

2 (\frac{( n + 1 ) !}{n !}) = 40

Simplify

2 (\frac{( n + 1 ) !}{n !}) : 2 (n + 1)

2 (n + 1) = 40

Divide both sides by

2

n + 1 = 20

Move

1

to the right side

n = 19

\frac{x + 1}{4} = \frac{5}{x}

\frac{5}{x} - \frac{3}{x + 4} = 2

1 - \frac{64}{x ^{2}} = 0

\frac{( a x + b )}{c x + d} = 2

\frac{X ^{2} - 9}{2 X - 6} = 1

What is the answer to 2(((n+1)!)/(n!))=40 ?
The answer to 2(((n+1)!)/(n!))=40 is n=19
Solve for n: 2(((n+1)!)/(n!))=40
The solution is n=19