Question

x+200=300

Answer 1

x+200=300

x       =300-200

x       =100

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Answer 2

x=100

Answer 3

x+200=300

x=300-200

x=100

Answer 4

X +200 = 300

X bằng 300 - 200

300 - 200 = 100

Vậy X bằng 100

Thử lại : 100 + 200 = 300

Answer 5

x + 100 = 200

x = 200 - 100

x = 100