Question

Seven times a number decreased by twice the number is forty-five. Find the number.

Answer 1

Step-by-step explanation:

Let this unknow number be representeb by the letter "x"

Since seven times of x decreased by twice x is forty-five, we can write this in equation form as:

`7x-2x=45`

Now, solving for x, we have the value of the unknown number.

`5x=45`