Solve One-Step (+/-) Equations

Front

What is a one-step equation?

Back

A one-step equation is an algebraic equation that can be solved in a single step by performing the same operation on both sides to isolate the variable.

Tags

CCSS.6.EE.B.7

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How do you isolate a variable in an equation?

Back

To isolate a variable, perform the inverse operation on both sides of the equation.

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CCSS.7.EE.B.4A

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

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CCSS.HSA.REI.A.1

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.

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CCSS.2.NBT.B.5

Front

If x + 5 = 12, what is x?

Back

x = 7 (Subtract 5 from both sides).

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CCSS.6.EE.B.7

Front

If y - 3 = 10, what is y?

Back

y = 13 (Add 3 to both sides).

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CCSS.6.EE.B.7

Front

What does it mean to evaluate an equation?

Back

To evaluate an equation means to find the value of the variable that makes the equation true.

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CCSS.6.EE.A.2C

Front

In the equation 15 = m - 5, what is the first step to solve for m?

Back

Add 5 to both sides.

Tags

CCSS.6.EE.B.7

Front

What is the solution to the equation f - 22 = 36?

Back

f = 58 (Add 22 to both sides).

Tags

CCSS.6.EE.B.7

Front

How can you check if your solution to an equation is correct?

Back

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

Tags

CCSS.6.EE.B.5