One-Step Equations

r + 20 = 27

• r = 7

• r = 47

• r = 13

• r = 20

Tags

CCSS.6.EE.B.7

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.

• Add 7 to both sides.
  The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7

What would be the best first step to solving the equation in one step?

• multiply both sides by ³/₂ 

• divide both sides by 3

• multiply both sides by 3

• subtract ²/₃  from both sides

Tags

CCSS.6.EE.B.7

What would be the best first step to solving the equation?

• multiply both sides by 3

• multiply both sides by 4

• divide both sides by 3

• divide both sides by 4

Tags

CCSS.6.EE.B.7

What is the solution for x + 9 = 21

• 10

• 12

• 11

• 13

Tags

CCSS.6.EE.B.7

Solve for b
2b = -16

• 8

• 4

• -8

• 3

Tags

CCSS.8.EE.A.2

Solve:

• 96

• -96

• 4

• -4

Tags

CCSS.6.EE.B.7

Solve:

• -12

• -8

• 12

• 8

Tags

CCSS.6.EE.B.7

x - (-2) = 7

• -9

• -5

• 5

• 9

Tags

CCSS.6.EE.B.7

When solving an equation, our goal is to:

• add all the numbers together.

• use a calculator.

• eat lunch.

• isolate the variable to solve.

Tags

CCSS.7.EE.B.4A