A student solved the equation: x+2(x+1)=17
Step 1: x+2x+2=17
Step 2: 3x+2=17
Step 3: 3x=15
Step 4: x=45
(3 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Identify the property used to arrive at Step 1: Response area
What step includes a mistake made from the previous step? Response area
What should have been the correct answer for x ?
Identify the property used to arrive at Step 1: The Distributive Property.
What step includes a mistake made from the previous step? Step 4: x=45 is incorrect.
What should have been the correct answer for x? x=5.
Identify the property used to arrive at Step 1: Distributive Property
What step includes a mistake made from the previous step? Step 4: The student made a mistake in simplifying the equation.
What should have been the correct answer for x? x = 5