Question

What can you do to isolate the variable on one side of the equation? ___________

Answer 1

Answer:

  Subtract (remove) 2 x-tiles from both sides.

  x = 5

Step-by-step explanation:

According to the rules of equality, you can add or subtract the same number(s) from both sides of the equal sign. Here, it is convenient to subtract the number of tiles that is on the side with the least number of tiles. That means we want to subtract 2 x-tiles from both sides.

The result of doing that is the answer:

  x = 5