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If 1 is subtracted from a number and the difference is multiplied by 12, the result is 7. - Mathematics

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Question

If 1 is subtracted from a number and the difference is multiplied by `1/2`, the result is 7.

Sum
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Solution

Let the number be x

Then, 1 is subtracted from a number and the difference is multiplied by `1/2` i.e. `1/2(x - 1)`

It gives result 7

So, the equation formed is `1/2(x - 1) = 7`.

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Chapter 4: Simple Equations - Exercise [Page 112]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 4 Simple Equations
Exercise | Q 65. | Page 112

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