Given any two known elements, the third can easily be computed. Determine the missing amount in each of the accounting equations below.

Assets

=

Liabilities

+

Capital

(a)

$7,200

=

$2,800

+

?

(b)

7,000

=

?

+

$4,400

(c)

?

=

2,000

+

4,400

(d)

20,000

=

5,600

+

?