Solving 2 Step Equations

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What is a 2-step equation?

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An equation that requires two operations to solve.

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CCSS.7.EE.B.4A

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Add 17 to both sides.

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CCSS.HSA.REI.A.1

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x = 5.

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CCSS.8.EE.C.7B

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What is the reciprocal of 7?

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What does it mean to isolate a variable?

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To manipulate an equation so that the variable is on one side and all other terms are on the other.

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What is the purpose of combining like terms in an equation?

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To simplify the equation and make it easier to solve.

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CCSS.8.EE.C.7B

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Subtract 4 from both sides.

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CCSS.7.EE.B.4A

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x = 4.

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CCSS.7.EE.B.4A

Front

What is the definition of an equation?

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A mathematical statement that asserts the equality of two expressions.