3/4 - 3/10
Convert to like denominators:
15/20 - 6/20
Subtract the numerators:
9/20

=
equals x = 
.
First, simplify

to

. Your problem should look like:

=

.
Second, multiply both sides by 2. Your problem should look like: x =

, which is the answer.
337,376 - 10,000 = 327,376