Linear Equations Error Analysis

Which step contains an error?

• Step 1

• Step 2

• Step 3

• No Error

Which step contains an error?

• Step 1

• Step 2

• Step 3

• No Error

Which step contains an error?

• Step 1

• Step 2

• Step 3

• Step 4

• No Error

Which step contains an error?

• Step 1

• Step 2

• Step 3

• Step 4

• No Error

Find the Error
What error did the student make when solving the equation:
1/5x + 6 = 3/5x + 5
1x + 6 = 3x + 5
-2x + 6 = 5
-2x = -1
x = 1/2

• The student found an incorrect common denominator

• The student did not multiply all terms by the common denominator

• The student did not use opposite operations appropriately

• The student did not correctly eliminate the variable from one side of the equation

Where is the error in the students work?

• Line 1

• Line 2

• Line 3

• Line 4

Tags

8.ee.7

Which step contains an error?

• Step 1

• Step 2

• Step 3

• Step 4

• No Error

Which step contains an error?

• Step 1

• Step 2

• Step 3

• No Error

Which step contains an error?

• Step 1

• Step 2

• Step 3

• No Error

Which step contains an error?

• Step 1

• Step 2

• Step 3

• Step 4

• No Error