An equation is a mathematical statement that asserts the equality of two expressions. It consists of two sides, typically separated by an equal sign (=). Each side of the equation can contain numbers, variables, and arithmetic operations (such as addition, subtraction, multiplication, and division). For example, in the equation: \[ 2x + 3 = 7 \] - The left side (2x + 3) and the right side (7) are the expressions being compared.
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