Line 3 incorrectly states that 3x = 16. The correct equation at this point should be 3x = 16 + 1, because the constant term (1) was not distributed across the parentheses in Line 2.
Therefore, the correct answer for the equation should be x = 17/3.
A student solved the equation: x+2(x+1)=17
Line 1: x+2x+1=17
Line 2: 3x+1=17
Line 3: 3x=16
Line 4: x=163
(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 go from Line 2 to Line 3: Response area
Which line has a mistake? Response area
What should have been the correct answer for the equation?
1 answer