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Question

What will be the value of x if x+1x+4=23, where x4?



A

3

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B

4

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C

5

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D

6

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Solution

The correct option is C

5


The equation is (x+1)(x+4) = 23

⇒​ 3(x+1)=2(x+4) [Using cross multiplication]

⇒​ 3x+3=2x+8 [Using distributive law]

3x2x=83

⇒​ x=5


Mathematics

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