Solving One- and Two-Step Equations

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What is a one-step equation?

Back

A one-step equation is an equation that can be solved in a single step, usually by performing an inverse operation to isolate the variable.

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CCSS.6.EE.B.7

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What is a two-step equation?

Back

A two-step equation is an equation that requires two operations to isolate the variable, typically involving addition or subtraction followed by multiplication or division.

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CCSS.7.EE.B.4A

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Back

x = 50

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CCSS.6.EE.B.7

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Solve: 3x = 15

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x = 5

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CCSS.6.EE.B.7

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Back

Multiply both sides by 5 to eliminate the fraction.

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CCSS.7.EE.B.4A

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Back

x = 42

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CCSS.7.EE.B.4A

Front

What does it mean to isolate a variable?

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Isolating a variable means to manipulate the equation so that the variable is on one side and all other terms are on the opposite side.

Front

Solve: x - 3 = 12

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x = 15

Tags

CCSS.6.EE.B.7

Front

What is the inverse operation of addition?

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The inverse operation of addition is subtraction.

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CCSS.HSA.REI.A.1

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What is the inverse operation of multiplication?

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The inverse operation of multiplication is division.

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CCSS.3.OA.C.7