So,
There are two transactions in Ramon's account. He first withdraws $140 (the check) and then deposits $268. We can write this as an expression.
2340 - 140 + 268
Simplify.
2200 + 268
2468
Ramon has $2468 left in his checking account.
Adding both equations cancels y:
<span>4x + 8y = 16
</span><span>4x - 8y = 0
-----------------+
8x = 16 => x=2
filling in x=2 in the first equation gives:
4*2 + 8y = 16 => 8y = 8 => y=1
So (2,1) is the (x,y) pair that solves the two equations. Answer C.</span>