Graphic algebra problems. Very hard

Select your preferred difficulty level for algebra exercises. Very hard. Free and interactive.

cara-loquillo.png - 2 = 14 - 1 - cara-silvia.png
cara-silvia.png + 3 = 20 - 3 - cara-donfacundo.png
cara-loquillo.png - 1 = 16 - 2 - cara-donfacundo.png
Can you calculate the value of each of the elements?
cara-donfacundo.png =
cara-silvia.png =
cara-loquillo.png =