Solving Two-Step Equations Made Easy

What is the first step in solving two-step equations?

• Perform addition or subtraction

• Use inverse operations

• Isolate the variable

• Simplify the equation

Tags

CCSS.7.EE.B.4A

In the equation 3x + 10 = 28, what is the value of x after subtracting 10 from both sides?

• x = 18

• 3x = 18

• x = 6

• x = 10

Tags

CCSS.7.EE.B.4A

What operation is used to isolate the variable in the equation 3x = 18?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.6.EE.B.7

How do you verify the solution x = 6 for the equation 3x + 10 = 28?

• Divide both sides by 3

• Multiply 3 by 6 and add 10

• None of the above

• Substitute x = 6 into the equation

Tags

CCSS.6.EE.B.5

In the equation -2w + 6 = 14, what is the value of w after subtracting 6 from both sides?

• w = 8

• -2w = 8

• w = -4

• w = 4

Tags

CCSS.7.EE.B.4A

What is the result of dividing -8 by -2?

• 2

• -2

• 4

• -4

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the correct operation to eliminate the fraction in the equation (x + 7) / 3 = 5?

• Multiplication

• Addition

• Division

• Subtraction

Tags

CCSS.7.EE.B.4A

After eliminating the fraction in the equation (x + 7) / 3 = 5, what is the next step to solve for x?

• Divide both sides by 7

• Add 7 to both sides

• Subtract 7 from both sides

• Multiply both sides by 7

Tags

CCSS.7.EE.B.4A

In the equation a - 15 / 12 = 2, what is the value of a after eliminating the fraction and solving?

• a = 15

• a = 27

• a = 39

• a = 24

Tags

CCSS.7.EE.B.4A

How do you verify the solution a = 39 for the equation a - 15 / 12 = 2?

• All of the above

• Substitute a = 39 into the equation

• Add 15 to both sides

• Multiply both sides by 12

Tags

CCSS.6.EE.B.5