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$3x +1 ; 2x ; 3x - 7$ are the first three terms of an arithmetic sequence. Calculate the value of x
in Grade 12 Maths by Diamond (37.9k points) | 16 views

1 Answer

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there is common difference

2x-(3x+1)=(3x-7)-2x

     expanding and  simplifying, x=3
by Silver Status (28.5k points)

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