add and subtract linear expressions

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What is a linear expression?

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A linear expression is an algebraic expression in which each term is either a constant or the product of a constant and a single variable raised to the first power.

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How do you add linear expressions?

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To add linear expressions, combine like terms by adding the coefficients of the same variable.

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How do you subtract linear expressions?

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To subtract linear expressions, distribute the negative sign and then combine like terms.

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What are like terms?

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Like terms are terms that have the same variable raised to the same power, allowing them to be combined.

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The coefficient is 3, which is the number multiplying the variable x.