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Solve for x if 1 + x + x^2 + x^3 + x^4 + ... = 15.

 Dec 1, 2019
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Solve for x:
1/(1 - x) = 15

Take the reciprocal of both sides:
1 - x = 1/15

Subtract 1 from both sides:
-x = -14/15

Multiply both sides by -1:

x = 14/15

 Dec 1, 2019

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