3x + 9 = 90
3x = 90 - 9 = 81
x = 81/3 = 27
x = 27
C, x = +-7. Difference of squares
Answer:
Step-by-step explanation:
Use vertical angles to help solve the problem. Angles that are across from each other are congruent. For exmaple, <2 = 85 degrees because the angle across from it is 85 degrees. I assume angle 1 is 95 degrees, so angle 3 would also be 95 degrees.
