Find the general solution: dy/dx= 4-y

Question

Find the general solution: dy/dx= 4-y

Answer 1

dy/(4-y) = dx

-ln|4-y| = x + c

ln |4-y| = -x - c

4-y = exp(-x-c)

4 - exp(-x-c) = y

exp(-x-c) = dy/dx