2+2x,x+9,3x+1 are in AP. Find x
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Answer:
x=5
Step-by-step explanation:
In A.P. difference of two terms are equal
x+9-(2x+2)=3x+1-(x+9)
x+9-2x-2=3x+1-x-9
-x+7=2x-8
2x+x=7+8
3x=15
x=5
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