Equations: Mathematical statements that show the equality of two expressions constitute equations. Variables are like empty boxes that can hold any number. They're placeholders for values we don't …

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You must use the "*" (star) symbol for all multiplications! x (x+1) is WRONG! It means a function x of x-1. x* (x-1) is right. Use the ^ (caret) for exponentiation. x^2 means x squared. x/2y means. Resources: …

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Here is what simplification helps you do: 2x+3x. It is the same value but in a simpler form. Spot useful patterns: A simplified expression might reveal a common factor, a perfect square, or a structure you …