Balance when Adding and Subtracting

Algebra is great fun - you get to solve puzzles!

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

Watch the equation below. Use the +x, −x, +1, −1 buttons. Try to get "x = (something)"

2x + 2

x + 8

Well Done!

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.