Question

Question #334ca

Answer 1

6

Explanation:

I'm going to use `Y` in place of the unknown variable.

`7+7 xx Y-5=79`

First, you will add the two sevens at the beginning together..

`14 xx Y-5=79`

Then, you will add five to the other side of the equation.

`14xxY=84`

Finally, you will divide both sides of the equation to get...

`Y=6`