How to solve $(16800)(1.1)^{n-1} = (18600)+ (1200)(n-1)$

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$$(16800)(1.1)^{n-1} = (18600)+ (1200)(n-1)$$ Since there is an unknown $n$ as the power, I really can't figure out how to solve this equation. I will be appreciate if anyone is willing to help.