Answer:
x=-4
Step-by-step explanation:
5x-14=-34
5x=-34+14
5x=-20
x=-4
Congruent is the same size and same shape. When a ray bisects an angle, the two newly created angles will be congruent, since the ray went right in the middle of the first angle (so in this case, ABC and DBC will be congruent)
(12x+5)+(3x-7)
Add the coefficients 12x+3x=15x
Add the numbers 5-7=-2
The answer is 15x-2
Hi!
So the angles make a right angle which is also known as a complementary angle.
What you want to do is set both terms equal to 90
11x + 4x = 90
15x = 90
divide by 15
x = 6
now multiply 6 by 4 because you want to know whata angle 3 is
6*4 = 24
24 degrees is your answer!
Hope this helps!