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=16/3
Identify the Property used to go from Line 2 to Line 3:______
Which line has a mistake? ____
What should have been the correct answer for the equation? ______
The property used to go from Line 2 to Line 3 is simplification or combining like terms.
There is no mistake in any of the lines.
The correct answer for the equation should be x = 16/3.