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RE: Brainsteem Mathematics Challenges - Steemit Voting Power
Solution via basic algebra:
p = p * .9830 + .2
p = .54548431... p + .2
.45451568... p = .2
p = .440028823... = 44.0028823... %
For practical everyday purposes, 44%.
I confirm: 44% x 0.98^30 ≈ 24% = 44%-20%