What is the first step to solve this equation 4cos(x)=1+2cos(x)?

Which of the following lines is parallel to x=4? a- 3y=9 b- y=4 c- x=2 d- x=y answer this as soon as possible xoxo lo ; )

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x