how come to (2/3)s+20 = 16s + 480?

how come to (2/3)s+20 = 16s + 480?
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1 Answer

(2/3)x +20=16x+480

2x+60=48x+1440

x+30=24x+720

24x-x=30-720

23x=-690

x=-690/23=-30
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