If (x+2) , (2x+3) are in AP then find the value of x.
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The sum of measures of angles of a triangles is 180 degrees
∴(x−40)+(x−20)+(x/2−10)=180
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∴5x/2−70
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=180
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∴5x/2=250
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∴5x=500
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∴x=100
o
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