caption: Three times a number is decreased by two
exif: {"Image DocumentName": "Three times a number is decreased by two", "Image ImageDescription": "Let n be a number. 3n - 2.", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}