X - 0.25y = 11,750 ⇒ x - 0.25y = 11,750
-0.2x + y = 10,000 ⇒ <u>0.05x - 0.25y = -2,500</u>
<u>0.95x</u> = <u>14,250</u>
0.95 0.95
x = 15,000
x - 0.25y = 11,750
15,000 - 0.25y = 11,750
<u> - 15,000 - 15,000</u>
<u>-0.25y</u> = <u>-3250</u>
-0.25 -0.25
y = 13,000
(x, y) = (15,000, 13,000)