The height of Liliana’s picture frame is 18 inches. The frame and blue matting take up 4.5 inches of the height. Liliana wants to know the height of a picture that will fit in the remaining height of the frame. Which equation and solution can be used to solve this problem?

A picture frame with a height of 18 inches.
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p minus 4.5 = 18: Add 4.5 to the left side and subtract 4.5 from the right side of the equation. The answer is 13.5 inches.
18 + p = 4.5: Subtract 4.5 from both sides. The answer is 13.5 inches.
p + 4.5 = 18: Subtract 4.5 from both sides. The answer is 13.5 inches.
18 + 4.5 = p: Subtract 4.5 from the left side. The answer is 13.5 inches.