null

+1

549

2

+24

null

booksly002 Mar 21, 2020

edited by booksly002 Apr 15, 2020

0 users composing answers..

2⁺⁰ Answers

+36916

+2

Maybe by 'guestimation' q+r = u r+s = w s+q = t s-r=v

ElectricPavlov Mar 21, 2020

+24

+1

null

booksly002 Mar 22, 2020

edited by booksly002 Apr 15, 2020

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