A photo is 4 inches wide. It is placed inside a frame with a border that is x inches wide. The total width of the photo and the frame is 7 inches. Write an equation to model the situation, then solve the equation to find the width of the border. (1 point)

Answer 1

The width of the border is x inches. With the border, the total width of the photo and the frame is 4 inches + x inches + x inches = 7 inches.
This can be written as the equation: 4 + 2x = 7.
To solve for x, we subtract 4 from both sides: 2x = 3.
Then we divide both sides by 2: x = 1.5 inches.
Therefore, the width of the border is 1.5 inches.