Hello! First, what you need to do is make your equation. Twice a number x is 2x, and x plus 7 is x+7. Since 2x equals x+7 this would make the equation 2x=x+7. Next, you subtract your x from the right side onto the 2x. So, since 1x or x=7, this means x is 7. You can check this by plugging in 7. 2(7) = 7+7. 14=14 so it works out! Hope this helped you!
