реши уравнения

(а-15)-16=18

(х-41)-21=8

(136-х)-16=52

(558+х)-52=746

419-(у-9)=36

92-(17-б)=89

помогите срочно

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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