Question

(х+10)/370=20    900/(х+5)=100    

 

Answer 1

(х+10)/370=20   

x+10=20*370

x+10=7400

x=7400-10

x-7390

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(7390+10):370=20

    7400:370=20

            20=20

 

 

 

 

900/(х+5)=100  

x+5 = 900:100

x+5 = 9

x=9 - 5

x= 4

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900:(4+5)=100

  900 : 9 = 100