Answer:
x = 
Step-by-step explanation:
I would subtract 5x and 2 on both sides to get x^2 - 5x - 2 = 0, and using the A = 0, B = -5, and C = -2 to plug it into the quadratic equation which is

*Ignore the A please I cannot get rid of it.*
11/10 or 1.1 is the correct answer.
Answer:
60 degrees
Step-by-step explanation:
Triangles are always equal to 180 degrees. So take the sum of the given numbers and subtract it from 180.
78+42=120
180-120=60 degrees. Hope this helps! :)