What is the meaning of the symbol below?

situational archetype describes the adventures of hero. the examples of situational archetypes are the quest, good vs evil, the task which represent respectively search, good forces, characters vs the evil ones and a certain job that must be done. from the given options, we cannot observe the subplot the beauty and the beast which is a correct answer for this question.

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4