Converting terminology via computers?

Cryptography

Explanation:

Just got it correct on the test.

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

hygelac - beowulf's uncle, king of the geats, and husband of hygd. hygelac heartily welcomes beowulf back from denmark. hygd - hygelac's wife, the young, beautiful, and intelligent queen of the geats. hygd is contrasted with queen hope this