Positive & Negative Numbers
Numbers can either be positive or negative. Often brackets are put around negative numbers to make them easier to read, e.g. (-2). If a number is positive, the + is usually missed out before the number. So 3 is really (+3). Adding and multiplying combinations of positive and negative numbers can cause confusion and so care must be taken.
I am going to teach you how to solve a simple Equation.
3 + (-2)
A plus and a minus make a minus, so this is the same as
3 - 2 =
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