Flow charts are a diagrammatic representation of a set of instructions which must be followed. Flow charts are made up of different boxes, which each have different functions. The flow chart above says think of a number, add 5 and multiply by 2. If the number is negative, make it positive. Flow charts are usually

## Algebraic Fractions

When adding or subtracting algebraic fractions, the first thing to do is to put them onto a common denominator (by cross multiplying). e.g. 1 + 4 (x + 1) (x + 6) = 1(x + 6) + 4(x + 1) (x + 1)(x + 6) =

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