I am new to this area of maths and would like to know from the following equation:
dx/dt -2x = 4 with conditions of t = 0 and x = 1
when rewritten to give sx - 1 - 2x = 4/s how do you rearrange to give an expression for x?
I have the answer as s + 4/s(s-2) but dont know how it has come to this.
Thanks in advance