Solving Equations 7th to 8th grade

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What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables.

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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.

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Subtract 12 from both sides to isolate the term with the variable.

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How do you check your solution for an equation?

Back

Substitute the solution back into the original equation to see if both sides are equal.

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What is the principle of balancing equations?

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The principle states that whatever you do to one side of the equation, you must do to the other side to maintain equality.

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What does it mean if an equation has 'no solution'?

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

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What is a variable in an equation?

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

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What does it mean to combine like terms in an equation?

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Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.