Tìm x (34.2x).(2x-6) = 0 (2019-x).(3x-12) = 0 57.(9x-27) = 0 3.(x+7)-15 = 27 25+3.(5-x) = 27

By Audrey

Tìm x
(34.2x).(2x-6) = 0
(2019-x).(3x-12) = 0
57.(9x-27) = 0
3.(x+7)-15 = 27
25+3.(5-x) = 27




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