Two Step Algebraic Expressions

Which of the following represents the phrase: "5 less than a number, j" ?

• j - 5

• 5 - j

• 5j

• 5/j

Which of the following represents the phrase: "the sum of 6 and a number, n" ?

• 6n

• n + 6

• 6 + n

• 6 - n

Which of the following represents the phrase: "7 added to a number, d" ?

• 7 - d

• d - 7

• 7 + d

• d + 7

Which of the following represents the phrase: "12 increased by a number, b" ?

• b + 12

• 12 + b

• 12b

• b - 12

• A

• B

• C

• D

What is the next step to solve the equation 4x=80?

• add 4 to both sides of the equation

• subtract 4 from both sides of the equation

• multiply both sides of the equation by 4

• divide both sides of the equation by 4

The table shown below represents the number of hours that Mike practiced his guitar each day. Which expression represents the total amount of time that Mike practiced his guitar?

• 10x

• 7x + 3

• 8x + 3

• none of the above

• a

• b

• c

• d

What is the next step to solve the equation \frac{x}{-10}=-16?

• add 10 to both sides of the equation

• subtract 10 from both sides of the equation

• multiply both sides of the equation by -10

• divide both sides of the equation by -10

Solve the equation.

Mathematical Equivalence

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