Step-by-step explanation:
step 1 .simply N/6 equation at the end of step 1 is (7+n/6)-1=0
step 2. rewrite the whole as an equivalent fraction 7=7/1=7.6/6
The next two term in patterns is below
3,6,5,10,9,18,17,34,33,66
Answer:
The fifth line contains the error.
Step-by-step explanation:
Line 1 is the equation.
Lines 2, 3, and 4 are correct.
The error is in the 5th line.
The square root of a negative number is not a real number, so if this problem is solved only with real numbers, there is no solution.
If imaginary numbers are allowed, then the last line should read:

here 8x and (2x+60) are corresponding angles
since line l1 and l2 are parallel, so the two angles will be equal
8x=2x+60
8x-2x=60
6x=60
dividing by 6
x=10
option D. 10 is correct