Since both of the angles are supplementary, you'd set the expressions up into an equation equal to 180(degrees). So, your equation should look like: 22x + 4 + 35x + 5 = 180. Next, you combine your like terms so that your next move will look like: 57x + 9 = 180. Then you'd follow the subtraction and division property, so your next moves will look as the following: 57x + 9 - 9 = 180 - 9 equals 171 57x / 57 = 171 / 57 equals 3 So, finally, your answer is: x = 3.
