Question

A whole number is increased by 7 and the number so
obtained is multiplied by 5; the result is 45. Find
the whole number.​

Answer 1

let the number- x

$= 5(x + 7) = 45$

$= x + 7 = \frac{45}{5}$

$= x + 7 = 9$

$= x = 9 - 7$

$= x = 2$

Answer 2

Answer:

Let the whole no.be x.

5(x+7)=45

=x+7=45/5

=x+7=9

=x=9-7

=x=2

Therefore,the whole no. is 2.