Ineed to know what the measure of angle x is from the picture given ? : (

Given angle 105 degrees:

1. Find the complement of the 105 degree angle: 75 degrees

2. Now we know that the vertical angle across from this 75 degree angle is also 75 degrees.

3. Now we know 2/3 angles in the bottom left triangle. (39+75+y = 180)

4. Solve for y, and y = 66 degrees

5. The vertical angle across from y is x, and it also is 66 degrees

66 degrees

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18