Why do people dance.? pls answer the question

Because some people have interest, it may be a hobby for someone, for some people it may relieve stress, dancing can be fun. Most people do dancing because they like it, they do it for fun.

Hope this helps you!

Explanation:

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