Linear Equations Unit Review

Simplify an expression for the perimeter of the equilateral triangle shown below.

• 5.25x - 6

• 3x - 6

• 6x + 5.25

• 5.25x + 6

Tags

CCSS.7.EE.A.1

Which of the following expressions has a simplified value of 3a - 2?

• -6a + 9a + 4 - 2

• -a + 4 + 5a - a - 6

• -8 + 3a + 10 - a

• -10 - 5a + 12 + 8a

Tags

CCSS.7.EE.A.1

Which is the correct simplified version of the expression shown after distributing and combining like terms?

• 5x + 6

• 11x + 6

• 5x - 6

• 11x - 6

Tags

CCSS.6.EE.A.3

Simplify the expression by distributing and combining like terms.

• 7.6x - 1

• -7.6x + 1

• 8.8x - 1

• 7.6x + 1

Tags

CCSS.6.EE.A.3

Which is the correct first step to solve the linear equation shown?

• Add 2.5 to both sides

• Divide -2.5 from both sides

• Add 15 to both sides

• Subtract 15 from both sides

Tags

CCSS.7.EE.B.4A

Solve the equation below.

• x = -24

• x = 24

• x = -12

• x = 12

Tags

CCSS.7.EE.B.4A

Austin solved the equation as shown below. Which correctly describes the error that Austin made in his work?

• Austin did not combine 7x and 8x correctly.

• Austin did not combine -3 and -9 correctly.

• Austin did not divide correctly.

• Austin did not make an error in his work.

Tags

CCSS.HSA.REI.A.1

Solve the equation below. 34 = -2 + 9x + 16 + x

• x = 2

• x = 3

• x = 4

• x = 1

Tags

CCSS.8.EE.C.7B

Which of the following shows the equation after both sides have been distributed correctly?

• -4x - 8 = 15x - 40

• -4x - 6 = 15x - 3

• -4x + 8 = 15x - 40

• -4x + 8 = 15x + 40

The perimeter of the rectangle below is 42 inches. Find the value of x.

• x = 4

• x = 6

• x = 8

• x = 10

Tags

CCSS.7.EE.B.4A