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evgenrubalko11

x times (75 div 5) = 60 \ x times 15 = 60 \ 15x = 60 \ x = 4 \ 4 times (75 div 5) = 60

15 times 3 div x = 9 \  frac{15 times 3}{x}  = 9 \  frac{45}{x}  = 9 \ x =5 \ 15 times 3 div 5 = 9

k + 120 div 4 = 500 \ k + 30 = 500 \ k = 470 \ 470 + 120  div 4 = 500

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