Which equations are true for the values of x, y, and z? Select three options. x + 65 = 180
x = z
y = 65
x = 65
x + y +z = 115

x+65=180 /  x+y+z=115

Step-by-step explanation:

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.