Answer:
x=2
Step-by-step explanation:
(5-2i)-(x+4i)=7-6i
put like expressions together first:
(-4i-2i)+5+x=7-6i
-6i+5+x=7-6i
6i-6i+5+x=7-6i+6i
5+x=7
5-5+x=7-5