Question

x + 20 = 60 - 30

Answer 1

x + 20 = 60 - 30

x + 20 = 30

x         = 30 - 20

x         = 10

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Answer 2

x + 20 = 60 - 30

x + 20 = 30

        x = 30 - 20

        x = 10

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Answer 3

X+20=20

X      = 20-20

X=0

Answer 4

x+20=60-30

x+20=30

x        =30-20

x        =10

Answer 5

x + 20 = 60 - 30

x + 20 = 30

       x = 30 - 20

       x = 10

Answer 6

x+20=60-30

x+20=30

x=30-20

x=10

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Answer 7

MK LÀM LỘN BÀI 

X+20=30

X      =30-20=10

Answer 8

x + 20 = 60 - 30

x + 20 = 30

x = 30 - 20 

x = 10

Answer 9

x+20=60-30

x+20=30

     x =30-20

     x =10

Answer 10

x+20=60-30

x+20=30

      x=30-20

      x=10

Answer 11

x+20=60-30

x+20=30

     x=30-20

     x=10

Answer 12

x +20 = 60 - 30

x + 20  = 30

x         = 30 - 20 = 10