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If 12 is subtracted from a number and the difference is multiplied by 4, the result is 5. What is the number? - Mathematics

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Question

If `1/2` is subtracted from a number and the difference is multiplied by 4, the result is 5. What is the number?

Sum

Solution

Let the number be x.

According to the question,

`4(x - 1/2) = 5`

⇒ 4x – 2 = 5

⇒ 4x = 5 + 2

⇒ 4x = 7

∴ x = `7/4`

Hence, the required number is `7/4`.

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Chapter 4: Linear Equation In One Variable - Exercise [Page 119]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 4 Linear Equation In One Variable
Exercise | Q 93 | Page 119

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