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.
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 try to get a solution like - (value) = -x|
|Then just add and subtract different amounts to see all the possibilities.|
|Now press "New Equation" and try out some more ... !|