Question

•How are expressions rewritten in simplified form based on the mathematical operations in the expression?
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Answer 1

@TypnoEchosis

Answer 2

3x + x - 9

That is an expression.

Expressions are usually easily identified when you notice that a string of mathematical symbols doesn't have an equals sign(=). The equals sign is a symbol that denotes that string of mathematical symbols as an equation.

Answer 3

To simplify the expression above, you would just do like terms

4x - 9 is the simplified form

Answer 4

^ what he said