Which equation has infinitely many solutions?
a. 1-2x=2(1-x)
b. 2x=1-2x
c. 2x= -1/2x
d. 1-2x=-(2x-1)

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?