Question

(10-x)+48=40-(2-x)

Answer 1

Ta có :(10-x)+48=40-(2-x)

          10-x+48=40-2+x

           58-x     =38+x

=>58+38=2x=>x=48

vậy x=48 

Answer 2

(10-x)+48=40-(2-x)

10-x+48=40-2+x

58-x=38+x

2x=58-38

2x=20

x=10

Answer 3

xl p na 2x=58-38=20=>x=10

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