The correct equation to solve for x is:
9x + 135 = 180
Two supplementary angles have the following measures: m∠ABC=135° and m∠CBD=9x° . What is the equation to solve for x ?
Responses:
9x + 135 = 180
9x = 180
9x - 135 = 180
9x + 135 = 90
1 answer