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If 2x, x + 10, 3x + 2 are in AP, find the value of x.

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asked Mar 15, 2018 in Mathematics by shabnam praween (19,050 points) ● 5 ● 6 ● 72
If 2x, x + 10, 3x + 2 are in AP, find the value of x.

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answered Mar 15, 2018 by santoshjha (25,550 points) ● 4 ● 5 ● 7
selected Mar 27, 2018 by Vikash Kumar
 
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Since 2x, x + 10 and 3x + 2 are in AP

2(x + 10) = 2x + (3x + 2)
⇒ 2x +20 = 2x + 3x + 2
⇒ 3x = 18 or x = 6
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