Please show me how to get the answer to this problem 5.9x=1.28=-27.04

Sonny, I'm guessing you probably meant to type:

5.9x + 1.28 = 27.04

in which case

5.9x = 27.04 - 1.28 = 25.76

**x = 4.366**

If you meant to type 5.9x - 1.28 = 27.04

5.9x = 27.04 + 1.28 = 28.32

**x = 4.8**