Expressions and Equations

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The degree of the expression is 3.

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Solve the equation: 4x - 5x + 9 = 5x - 9

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x = 3.

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Solve for x: 4 + x = 3(x + 2)

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x = -1.

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There is no solution.

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Solve for f: f - 4 = 6f + 26

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f = -6.

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What is an expression in mathematics?

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An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

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What is an equation?

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An equation is a mathematical statement that asserts the equality of two expressions.

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What does it mean to solve an equation?

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To solve an equation means to find the value(s) of the variable(s) that make the equation true.

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What is a variable in mathematics?

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A variable is a symbol (often a letter) that represents an unknown value.

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