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2016-03-14T21:19:08+08:00

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Representation: Let x be the first number
                            Let x + 2 be the second number
                            Let x + 4 be the third number

Equation3x = 4 + 2(x + 2)

Solution: 3x = 4 + 2(x + 2)
                 3x = 4 + 2x + 4
                 3x = 8 + 2x
                 x = 8

Evaluate: First number ⇒ x = 8
                Second number ⇒ x + 2 = 10
                Third number ⇒ x + 4 = 12

Answer: The numbers are 8, 10 and 12.

Check: 3x = 4 + 2(x + 2)
             3(8) = 4 + 2(8 + 2)
             24 = 4 + 2(10)
             24 = 4 + 20
             24 = 24 (true)


Hope it helps =)
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