Rearranging formulae

Sometimes in maths you will encounter equations with an unknown value, such as X+3=7. Though this is a very simple example that you can probably do in your head without thinkig much, knowing the principles of how to rearrange equations will be helpful when you encounter more complex equations, such as 14X/3 + 8 = x^2The principles behind rearranging the equation to solve an unknown are:Whatever you do to one side of the equation, you need to do the other side of the equation as well - otherwise the two sides will not be equalIf you want to get rid of something on one side of the equation, you need to do the opposite to what it is doing Say if you have +3 -> you need to subtract 3 from both side If you have x3 -> you need to divide by 3Rearrange the equation so that you have only the unknown value on one side of the equation