Solve 7X - 3X = 9 - 3X please.

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Kmartin · Answer 1 · 2012-01-24T23:12:25+0000

7x - 3x = 9 - 3x

combine like terms on the left

4x = 9 - 3x

add 3x to both sides

7x = 9

divide both sides by 7

x = 9/7 = 1 2/7