1.

2(x+7) =6x+9-4x linear equation​

Answer»

trong>2(x+7) = 6X + 9 - 4x

 2x + 14 = 2x + 9

 2x - 2x = 9 - 14

 0 = -5

 5 = 0

⇒5

 2(x+7) = 6x + 9 - 4x

  ⇒ 5 = 0 OR  5

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