Sum of the values of x satisfying the equation 2x+2x+4=4 is

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answer is 6.

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Detailed Solution

2x+2x+4=4⇒ 2x+4=16−2x⇒ 2x+4=4(8−x)2⇒ 2x2−33x+126=0⇒(2x−21)(x−6)=0⇒ x=6,21/2But x = 21/2 does not satisfy the given equation.

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