How to solve?

Algebra is just like a puzzle where we start with something like "x − 2 = 4" and we want to end up with something like "x = 6".

But instead of saying "obviously x=6", use this neat step-by-step approach:

• Work out what to remove to get "x = ..."

• Remove it by doing the opposite (adding is the opposite of subtracting)

• Do that to both sides