2020.8.4.1.Linear Equations

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

Tags

CCSS.4.NBT.B.6

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

TEKS.MATH.6.10A

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Tags

CCSS.6.EE.B.7

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

Tags

CCSS.6.EE.B.7

4x + 7 = 23

• x = 16
• x = 4
• x = 9
• x = 12

Tags

CCSS.7.EE.B.4A

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5

Tags

CCSS.7.EE.B.4A

3(3x - 6) = 18

• x = 4
• x = -4
• x=8
• x= -12

Tags

CCSS.7.EE.B.4A

-11 + 3(b + 5) = 7

• b = 1
• b= -1
• b = 3
• b = -3

Tags

CCSS.7.EE.B.4A

What do we call a letter in math that represents an unknown number?

• coefficient
• variable
• term
• expression

Tags

CCSS.6.EE.A.2B