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Posts Tagged ‘Expressions’

How are expressions formed?

March 16th, 2010 Algebra Tutor

We know very well what a variable is. We use letters x, y, l, m, … etc. to denote variables. A variable can take various values. Its value is not fixed. On the other hand a constant has a fixed value. Examples of constant are: 4, 100, -17, etc. We combine variables and constants to [...]

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