McGraw Hill Glencoe Algebra 1, 2012
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McGraw Hill Glencoe Algebra 1, 2012 View details
Explore: Algebra Lab, Solving Multi-Step Equations
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Exercise 2 Page 90

We can use an equation model to solve Let's do it step by step!

Step

We can begin with modeling the equation. On the left-hand side we have so we place tiles and positive tiles on one side of the mat. On the other side, we place positive tiles.

Step

Now, we want to isolate the term. Since there are positive -tiles with the tiles, we can add negative -tiles to each side to form the zero pairs.


Step

Next, we can group the tiles to show the zero pairs. There are of them on each side.

Let's remove the zero pairs!

Step

Finally, we can group the remaining tiles into equal groups to match the tiles.

We can tell that each tile is paired with positive -tiles. Therefore, the resulting equation is