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On your paper, write the equation represented on the Equation Mat at right. Simplify as much as possible and then solve for .

A 4 region equation mat with tiles as follows. Positive Left: 2 negative units, 1 positive unit, and 1 positive x. Negative Left: 3 positive units, and 1 negative x.  Positive Right: 6 positive units. Negative Right: 1 positive unit, and 1 negative unit.Shaded tile is plus 1.  Tile is negative 1.

Move all tiles in the "minus" region to the "plus" region by flipping the tiles and remove any zero pairs. Write the equation represented.

Solve for .

Use the eTool below to help solve the problem.
Click the link at right for the full version of the eTool: 3-7 HW eTool