Solving Two Step Equations with Rational Numbers

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What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

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How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in the reverse order of how they are applied.

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Back

Subtract 3.6 from both sides to isolate the term with the variable.

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Back

x = 4.

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Back

Add 2 to both sides, then divide by -4 to find n.

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Back

a = 146.

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What does it mean to have a rational number in an equation?

Back

A rational number is any number that can be expressed as a fraction or ratio of two integers.

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How do you check if your solution to a two-step equation is correct?

Back

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

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a = -6.

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What is the inverse operation of addition?

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Subtraction.