6times a number plus 3 times a second number is 27. the second number is 1 more than 2 times the first number what is the second number

The sum of two numbers is 12 and their difference is 18 what are the two numbers

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+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′?