Solving Basic Algebraic Equations

This video tutorial introduces the method of solving equations by inspection, a technique where one identifies the missing number in an equation by observation. The video begins with a recap of what equations are and why they are solved. It then provides simple examples, such as finding the missing number in equations like 'something plus three equals five'. The tutorial progresses to slightly more complex examples, encouraging viewers to pause and solve problems independently. The video concludes with a summary of the method and encourages viewers to engage with additional resources.

What is the purpose of solving an equation?

• To create a new equation

• To make both sides of the equation unequal

• To eliminate variables

• To find the value of unknowns that make the equation true

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CCSS.1.OA.D.8

In the equation 'something plus three equals five', what is the missing number?

• 1

• 3

• 2

• 4

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CCSS.6.EE.B.7

If fifteen plus a number equals five, what is the number?

• 10

• -10

• 20

• -5

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CCSS.6.EE.B.7

In the equation 'four times a number equals twelve', what is the number?

• 5

• 4

• 2

• 3

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CCSS.1.OA.D.8

What is the missing number in the equation 'something minus one equals five'?

• 7

• 6

• 5

• 4

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CCSS.6.EE.B.7

In the equation 'two times a number equals six', what is the number?

• 1

• 2

• 3

• 4

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CCSS.6.EE.B.7

What is the value of x if x plus 3 equals 7?

• 4

• 2

• 5

• 3

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CCSS.6.EE.B.7

If x minus 2 equals 2, what is the value of x?

• 4

• 3

• 5

• 2

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CCSS.3.OA.A.4

What is the missing number in the equation 'x times 2 equals 8'?

• 3

• 2

• 4

• 5

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CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.5

CCSS.RI.8.3

CCSS.RI.8.5

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CCSS.RI.5.5

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CCSS.RI.6.5

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CCSS.RI.8.5