Question

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

Answer 1

Step-by-step explanation:

When 1/2 is subtracted from x which will give (x - 1/2) and the difference is multiplied with 4[x - 1/2]*4 to give 5. Therefore: When 1/2 is subtracted from 7/4 and the difference is multiplied by 4, the result is 5

Answer 2

We know that:

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

Now:

Let the number be 'x'.

According to the question:

When 1/2 is subtracted from x which will give (x - 1/2) and the difference is multiplied with 4[x - 1/2]*4 to give 5.

Now:

$\implies$[x - 1/2] * 4 = 5

$\implies$ 4x - 1/2 * 4 = 5

$\implies$ 4x - 2 = 5

$\implies$4x = 5 + 2

$\implies$4x = 7

$\implies$ x = 7/4

Therefore:

When 1/2 is subtracted from 7/4 and the difference is multiplied by 4, the result is 5.

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