Understanding equations and solutions

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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, typically containing one or more variables.

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CCSS.6.EE.A.2C

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What is a variable in mathematics?

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A variable is a letter or symbol that represents an unknown value in an equation.

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CCSS.6.EE.A.2B

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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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CCSS.8.EE.C.7B

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CCSS.6.EE.B.7

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CCSS.6.EE.B.5

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CCSS.6.EE.B.7

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CCSS.6.EE.B.7

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What is a constant in mathematics?

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A constant is a fixed value that does not change.

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CCSS.6.EE.A.2B

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What is the purpose of using equations?

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Equations are used to model relationships between quantities and to solve problems involving unknown values.

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CCSS.7.EE.B.4A

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What does it mean if an equation has no solution?

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It means that there are no values for the variable that can satisfy the equation.

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CCSS.8.EE.C.7A