What Is an Equation in Math?


Quick Answer

An equation in math is a statement stating that two math expressions are equal. An equation always consists of an equal sign. The equal sign in an equation is read as "this equals that."

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Full Answer

An example of an equation is 9x + 5 = y. The letters x and y in the equation are called variables. These represent unknown values, which are discovered through solving the equation. The number 5 in this equation is known as a constant, due to it being a number on its own. The 9 in this equation is a coefficient, a number multiplied by a variable. The plus sign is the operator of the equation, showing which operation to perform in the equation.

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