Variables on Both Sides (word)

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What is a variable in mathematics?

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A variable is a symbol, often represented by a letter, that stands for an unknown value in an equation or expression.

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What does it mean to solve an equation with variables on both sides?

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It means to find the value of the variable that makes both sides of the equation equal.

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What is the first step in solving an equation with variables on both sides?

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The first step is to simplify both sides of the equation, if possible, by combining like terms.

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How do you isolate a variable in an equation?

Back

You isolate a variable by performing inverse operations to get the variable alone on one side of the equation.

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How do you set up an equation to find when two expressions are equal?

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You set the two expressions equal to each other and solve for the variable.

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What does it mean if two tanks of water will never have the same amount?

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It means that the rates of change of water in both tanks are such that they will not meet at the same volume.