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Question

Number of values of x, satisfying the equation (x+8)+2(x+7)+(x+1)x+7=4, is

A
0
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B
1
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C
2
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D
3
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Solution

The correct option is B 1
(x+7+1)+(x+1)x+7=4
(x+1)x+7=3x+7
(x+1)x+7=9+(x+7)6x+7
5x+7=15
x+7=9x=2
Only one value of x will satisfy the equation.

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