# Balance when Adding and Subtracting

*Algebra is great fun - you get to solve puzzles!*

When we add or subtract the same thing from both sides the equation **stays in balance**.

Watch the equation below and try to get "x = (something)" using the +x, −x, +1, −1 buttons.

images/balance.js

## Things to Try

Each "equation" will have a solution like "x=2" (or maybe "x=3", etc). Try to see all the different ways this answer can be hidden.

- First, try to
**solve**the equation by adding and subtracting until you get an answer like**x = (value)** - Then add and subtract some more until you get x −
**(value)**= 0 - Then just add and subtract different amounts to see all the possibilities.

*Now press "New Equation" and try out some more ... !*