1-Step Equations - Inverse Operations

1-Step Equations with Inverse Operations

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Parts of an equation

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​3x + 5 = 17

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​x = 4

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Variable

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​3x + 5 = 17

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​x = 4

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Coefficient

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​3x + 5 = 17

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​x = 4

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Constant

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​3x + 5 = 17

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​x = 4

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Solution

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​3x + 5 = 17

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​x =4​

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Multiple Choice

For the equation

2x = 8

x = 4

Which term is a constant?

• 2

• 8

• x

• 4

Multiple Choice

For the equation

2x = 8

x = 4

Which term is a coefficient?

• 2

• 8

• x

• 4

Multiple Choice

For the equation

2x = 8

x = 4

Which term is a variable?

• 2

• 8

• x

• 4

Multiple Choice

For the equation

2x = 8

x = 4

Which term is the solution?

• 2

• 8

• x

• 4

One step equations - Inverse Operations

​To solve one step operations, we use the inverse operation to isolate the variable

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Isolate the variable means we need the equation to eventually have the variable on one side of the equation​

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One step equations - Inverse Operations

x - 4 = 9​

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We want to find out what x equals, so we need to remove the - 4​

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We remove it by turning it to 0

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We turn it to 0 with insert operations​

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One step equations - Inverse Operations

x - 4 = 9​

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The inverse operation of subtraction is addition

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When you do something to one side of the equation, you must also do it to the other side​

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One step equations - Inverse Operations

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x - 4 = 9​

+4​ +4

x = 13​

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One step equations - Inverse Operations

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x - 6 = 4

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One step equations - Inverse Operations

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x - 6 = 4

+6 +6​

x = 10​

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One step equations - Inverse Operations

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2x = 12

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One step equations - Inverse Operations

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2x = 12

2 2​

x = 6​

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