Which of the following equations have infinitely many solutions? Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
-19x-19=-19x+19−19x−19=−19x+19minus , 19, x, minus, 19, equals, minus, 19, x, plus, 19

(Choice B)
B
-19x-19=-19x-19−19x−19=−19x−19minus , 19, x, minus, 19, equals, minus, 19, x, minus, 19

(Choice C)
C
-19x+91=-19x+91−19x+91=−19x+91minus , 19, x, plus, 91, equals, minus, 19, x, plus, 91

(Choice D)
D
-19x-38=-19x-38−19x−38=−19x−38

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180