Unlike traditional “picture” jigsaw puzzles, linear equation jigsaw puzzles are largely blank. There are seldom patterns or background images to guide you as you put the pieces together. Although traditionally rectangular, some puzzles are designed to take on unexpected shapes when completed. However, these “shaped” puzzles are not usually sold with obvious clues that will allow the puzzle builder to construct the puzzle using only the goal of a particular shape. There are no short-cuts, cheat-sheets, or ways to avoid solving the equations. If you want to build the puzzle, you must first solve the equations printed on the puzzle pieces – they alone hold the keys to putting the puzzle together. If you are new to linear equation jigsaw puzzles, and need some help getting starting, read “How to Solve a Linear Equation Jigsaw Puzzle“.