2 Variable EQ Checkpoint

Solve the following equation below:

3n + 5 = 2n +7

Do not just write the answer! Show your steps.

Identify the methods used to simplify the equation:

• Combining Like Terms

• Addition

• Subtraction

• Distributive Property

What method was used to check the solution?

• Subtraction

• Addition

• Substitution

• Inverse Operations

Tags

CCSS.6.EE.B.5

Write in your own words explaining to a classmate the steps the student took to solve the equation.

(You should have at least 3 sentences for your response)

Tags

CCSS.HSA.REI.A.1

True or False:

The solution for the following equations is correct.

4(z + 1) = 8z - 3; z=2

• True

• False

Tags

CCSS.6.EE.B.5

What is the first step you should take to solve this problem?

1 + 4n - 6n = 1 - 8n

• subtract 8n to both sides

• multiply 6n to both sides

• combine the like terms 4n + -6n

• add 1 to both sides

What is the first step you should take to solve this problem?

-3(x - 2) = -8 +9b

• add 8 to both sides

• subtract 9b from both sides

• Distribute -3 to the x and -2

• add 2 to both sides

Tags

CCSS.7.EE.B.4A

Jacob solved the following equation using the steps shown.

Step 1 5x + 9 = 2x - 3

Step 2 3x + 9 = -3

Step 3 3x = -12

Step 4 x = -4

What operation did he perform to get from Step 1 to Step 2?

• Subtracted 2x from both sides of the equation

• Subtracted 9 from both sides of the equation

• Multiplied both sides of the equation by 3

• Added -3 to both sides of the equation

Tags

CCSS.HSA.REI.A.1

What is the error?

• Adding 2x to 3x

• Subtracting 5 from both sides

• Adding 2x to -2x

• Dividing by 5 on both sides

Tags

CCSS.HSA.REI.A.1

Solve: 4x - 3 = 6x - 19

• x = -8

• x = 11

• x = -11

• x = 8