#### Answer

s+c=2300
s-4c =0

#### Work Step by Step

Let's say s is his savings account and c is his checking account. The total amount of them is 2300 so let's add them together:
s+c=2300
Now, Dominique has 4 times as much money in his savings account as his checking account. If there was 100 in his checking account, then there is 400 in his savings account because 4 x 100 = 400. So 4c=s, which simplifies to:
s-4c =0
So our answer is:
s+c=2300
s-4c =0