Which of the following equations have exactly one solution? Choose all answers that apply:

A
2x-31=2x-312x−31=2x−312, x, minus, 31, equals, 2, x, minus, 31

B
2x-31=-2x-312x−31=−2x−312, x, minus, 31, equals, minus, 2, x, minus, 31

(Choice C)
2x+31=2x-312x+31=2x−312, x, plus, 31, equals, 2, x, minus, 31

(Choice D)
2x-2=2x-312x−2=2x−31

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram