Two supplementary angles have the following measures: m∠ABC=135° and m∠CBD=9x° . What is the equation to solve for x ?(1 point)%0D%0AResponses%0D%0A%0D%0A9x°−135°=180°%0D%0A9 x minus 135 equals 180%0D%0A%0D%0A9x°+135°=90°%0D%0A9 x plus 135 equals 90%0D%0A%0D%0A9x°=180°%0D%0A9 x equals 180%0D%0A%0D%0A9x°+135°=180°
The correct equation to solve for x is:
9x° + 135° = 180°