Algebraic expressions

Which expressions is equivalent to 3(x + 10)?

• 3x + 30

• -3x + 10

• -3x - 30

• 3x - 30

Kevin wrote the expression shown to determine the cost in dollars for an upcoming trip.
 $(227.50−49.50)+2(96.50+5)$  
Which expression is equivalent to the one Kevin wrote?

• 178 + 103.50

• 178 + 203

• 178 + 192

• 178 +101.50

Which of the following is NOT equivalent to 42x + 24?

• 2(21x + 12)

• 3(14x + 8)

• 6(7x + 4)

• 7(6x + 17)

True or false, the following expressions are equal.

9 - (3 • y) and 9 - (y • 3)?

• True

• False

Answer explanation

True. These are equivalent. Since you cannot change the order of subtraction, that remains the same. However, you can change the order of multiplication. So, (3 •y) is equivalent to (y • 3).

Which expression is equivalent to 48 + 60?

• 12(4 + 5)

• 12(8 + 5)

• 6(6 + 10)

• 6(8 + 12)

Tags

6.NS.B.4.b

Which expression is equivalent to 5t+5t?

• t + 10

• 9t

• 10t

• t

Which expression has the same value as 4(3x + 5)?

• 1. 7x + 5

• 1. 11x + 5

• 1. 7x + 9

• 12x + 20

What is an example of an equation?

• x+5=20

• 2x

• 8y+9y

• x+b+c

Choose the equivalent expression.

4 + 7z + 3 + 2z

• 5z + 1

• 9z - 1

• 9z + 7

• 7z + 7