Question

[G U C K F O S U]

x + 200 = 700 - 200

Answer 1

[phamthiminhtrang]

x + 200 = 700 - 200

x + 200 = 500

x          = 500 - 200

x          = 300

Answer 2

[G U C K F O S U]

x + 200 = 700 - 200

x + 200 = 500

x          = 500 - 200

x          = 300

ai tk mk mk tk lại ^_^