Writing Equations with One Variable

The video tutorial introduces algebra, focusing on writing equations in one variable. It explains the difference between expressions and equations, highlighting key terms that indicate operations and equality. The tutorial provides examples of writing equations from verbal statements involving sums, products, and quotients. It also includes a practical example of determining the initial number of contestants in a competition. The video concludes with encouragement to practice writing equations.

What is an equation in mathematical terms?

• A mathematical phrase without an equal sign

• A mathematical sentence with an equal sign

• A number sentence with only addition

• A phrase that describes a variable

Tags

CCSS.6.EE.A.2B

Which word indicates the equal sign in an equation?

• Sum

• Product

• Is

• Quotient

Tags

CCSS.6.EE.B.5

How would you write the sentence 'The sum of N and 7 is 15' as an equation?

• N / 7 = 15

• N * 7 = 15

• N + 7 = 15

• N - 7 = 15

What does the word 'product' indicate in an equation?

• Division

• Addition

• Subtraction

• Multiplication

Tags

CCSS.6.EE.B.6

How should you write the multiplication of a variable and a number in algebra?

• Variable x Number

• Variable * Number

• Number * Variable

• NumberVariable

Tags

CCSS.6.EE.A.2A

How would you write the sentence 'The product of x and 13 is 39' as an equation?

• x / 13 = 39

• x - 13 = 39

• 13x = 39

• x + 13 = 39

Tags

CCSS.HSA.CED.A.3

What does the word 'quotient' indicate in an equation?

• Division

• Multiplication

• Subtraction

• Addition

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

How would you write the sentence '24 is the same as the quotient of W and 3' as an equation?

• 24 = W + 3

• 24 = W - 3

• 24 = W / 3

• 24 = W * 3

In the example problem, what does the word 'eliminated' indicate?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How would you write an equation to find the initial number of contestants if 24 were eliminated and 12 remain?

• C - 24 = 12

• C * 24 = 12

• C + 24 = 12

• C / 24 = 12

Tags

CCSS.HSA.CED.A.3