Question

If 25 subtracted from seven times a number, the result is 2015. Find the number.

Answer 1

the number is 'x'.

$7x-25 = 2015\\7x = 2015+25\\7x = 2040\\x = \frac{2040}{7} \\x = 291.428$

Answer 2

SOLUTION

GIVEN

25 subtracted from seven times a number, the result is 2015.

TO DETERMINE

The number

EVALUATION

Let the required number = x

Now seven times the number = 7x

Subtracting 25 from 7x we get 7x - 25

The result is 2015

So by the given condition

$\displaystyle \sf{ 7x - 25 = 2015}$

$\displaystyle \sf{ \implies 7x = 2015 + 25}$

$\displaystyle \sf{ \implies 7x = 2040}$

$\displaystyle \sf{ \implies x = \frac{2040}{7} }$

FINAL ANSWER

$\displaystyle \sf{ Hence \: the \: required \: number = \frac{2040}{7} }$

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