Equations and Expressions Review

Front

What is a variable in an equation?

Back

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

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How do you isolate a variable in an equation?

Back

To isolate a variable, you perform inverse operations to get the variable alone on one side of the equation.

Front

What does it mean to balance an equation?

Back

Balancing an equation means ensuring that both sides of the equation have the same value.

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Front

If Kelly earned $20 for babysitting and $100 in total, how much did she earn from chores?

Back

She earned $80 from chores.

Front

What operation would you use to eliminate a division by 11 in an equation?

Back

You would multiply both sides of the equation by 11.

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What is the purpose of using inverse operations in solving equations?

Back

Inverse operations are used to undo operations and isolate the variable.

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What does it mean to solve an equation?

Back

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