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
1. Identify the Property used to go from Line 2 to Line 3:______
A. distributive property
B. subtraction property of equality
C. multiplication property of equality
2. Which line has a mistake? ____
A. line 1
B. line 2
C. line 3
D. line 4
3. What should have been the correct answer for the equation? ______
A. x = 5
B. x = 45
C. x = 15
1. The Property used to go from Line 2 to Line 3 is: C. multiplication property of equality.
2. The correct line is: D. line 4.
3. The correct answer for the equation should be: A. x = 5.