Question

x + 20 = 20 + 50

 

Answer 1

x + 20 = 20 + 50

x + 20 = 70

        x = 70 - 20

        x = 50

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Answer 2

x + 20 = 20 + 50

x + 20 = 70

       x = 70 - 20

       x = 50

Answer 3

x+20=20+50

x+20=70

x=70-20

x=50

Answer 4

x+20=20+50

x+20=70

x=70-20=50

chúc bạn học giỏi

Answer 5

x=(50+20)-20

x=70-20

x=50

k cho minh 

Answer 6

x + 20 = 70

x = 70 - 20

x = 50 

Answer 7

x+20=20+50

x + 20 = 70

x        = 70 - 20

x        =50

Answer 8

x + 20 = 70

x         = 70 - 20

x          = 50

Answer 9

=50nha

Answer 10

x + 20 = 20 + 50

x + 20 = 70

       x = 70 - 20

       x = 50

Tk mình, mình tk lại

Wishing you a new year is always lucky!

( ^_^ )

Answer 11

x + 20 = 20 + 50

x + 20 = 70

       x  = 70 - 20

       x  = 50

Answer 12

x+20=20+50

x+20=70

     x =70-20 

     x =50