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**Annuity Equation "isolating n value" HELP!**

[tex]R =\frac{Pi(1+i)^n}{(1+i)^n-1}[/tex]

**1. I need to solve for n.**

**n = number of years****P = Investment****R = Yearly Savings****i = interest rate**

**3. My Attempt:**

[tex]R =\frac{Pi(1+i)^n}{(1+i)^n-1}\rightarrow -1 \cdot R = \frac{Pi(1+i)^n}{(1+i)^n} \cdot -1 [/tex]

Once I get here I'm left with:

[tex]-R =\frac{Pi(1+i)^n}{(1+i)^n}[/tex]

It seems like the quantities of [tex](1+i)^n[/tex] cancel so I'm left with:

[tex]R = Pi[/tex]

I know this isn't correct, and I've tried it many other ways with no luck.

Any help would be greatly appreciated!

[tex]R =\frac{Pi(1+i)^n}{(1+i)^n-1}\rightarrow -1 \cdot R = \frac{Pi(1+i)^n}{(1+i)^n} \cdot -1 [/tex]

Once I get here I'm left with:

[tex]-R =\frac{Pi(1+i)^n}{(1+i)^n}[/tex]

It seems like the quantities of [tex](1+i)^n[/tex] cancel so I'm left with:

[tex]R = Pi[/tex]

I know this isn't correct, and I've tried it many other ways with no luck.

Any help would be greatly appreciated!

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