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Question

The solution for the equation (1x+2+1x+3=2x+9) is

A
3313
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B
2313
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C
4313
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D
5313
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Solution

The correct option is A 3313
1x+2+1x+3=2x+9

=1x+2+1x+32x+9=0

=(x+3)(x+9)+(x+2)(x+9)2(x+2)(x+3)(x+2)(x+3)(x+9)=0

=(x2+12x+27)+(x2+11x+18)2(x2+5x+6)=0

=x2+12x+27+x2+11x+182x210x12=0

=13x+33=0

x=3313

Option A is correct.



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