7.12 2 step equations

What is the first step when solving for x in this equation?

2x + 10 = 30

• Divide both sides of the equation by 30

• Subtract both sides of the equation by 10

• Add 10 to both sides of the equation

• Subtract both sides of the equation by 30

Tags

CCSS.7.EE.B.4A

Use the model to answer the question.

Which equation and solution are represented by the model above?

• 2x - 3 = 9

  x = 6

• 2x - 3 = 9

  x = 3

• -2x + 3 = 9

  x = 6

• -2x - 3 = 9

  x = 3

Tags

CCSS.7.EE.B.4A

Find the solution to the number sentence.

Solve for d

2d - 5.2 = 2.8

• d = 8

• d = 1.2

• d = 4

• d = 1.4

Tags

CCSS.6.EE.B.7

Alek and Tuu each solved the same question. Their work is shown below. Who is correct?

Tags

CCSS.HSA.REI.A.1

What did Alex or Tuu do incorrectly?

• divided instead of subtracted

• subtracted instead of divided

Tags

CCSS.HSA.REI.A.1

Solve the following:

3y - 4 = 20

Tags

CCSS.7.EE.B.4A

Tags

CCSS.7.EE.B.4A