Find the values of x and y in the following equation. (x + yi) + (4 + 9) = 9 -4i

We have that

if the expression is  (x + yi) + (4 + 9) = 9 -4i
x+13=9> x=9-13> x=-4
yi=-4i > y=-4

the solution is
x=-4
y=-4

if the expression has a typing error and it is really (x + yi) + (4 + 9i) = 9 -4i
then
x+4=9> x=9-4< x=5
y+9=-4> y=-4-9 > y=-13
the solution is
x=5
y=-13

Don’t know sorry about that