In 2004 X would be:

X=4

and

In 2008 it would be:

X=8

Our question is:

Y=1777X+27153

Plugging in 4 in this equation to calculate for 2004:

Y=1777(4)+27153

Y=7180+27153

Adding:

Y=34261

So in 2004 there were 34261 gun deaths

For 2008:

Y=1777X+27153

Y=1777(8)+27153

Y=14216+27153

Adding:

Y=41369

So in 2008 there were 41369 gun deaths

X=4

and

In 2008 it would be:

X=8

Our question is:

Y=1777X+27153

Plugging in 4 in this equation to calculate for 2004:

Y=1777(4)+27153

Y=7180+27153

Adding:

Y=34261

So in 2004 there were 34261 gun deaths

For 2008:

Y=1777X+27153

Y=1777(8)+27153

Y=14216+27153

Adding:

Y=41369

So in 2008 there were 41369 gun deaths