Question

Which line shows the first error in the solution?


4x + 8=2x - 10 (1)
4x - 2x+8 = 2x - 2x - 10 (2)
2x + 8 = - 10 (3)
2x + 8 - 8 = - 10 - 8 (4)
6 x = - 2 (5)
6x/6 = -2/6 (6)
x= -1/3 (7)

A.
Line 2


 
B.
Line 3


 
C.
Line 4


 
D.
Line 5

Answer 1

error
6 x = - 2 (5)
should be

2 x = - 18 (5)

answer
D. 
Line 5