Question 766369
Green frog costs x cents
Chocolate frog costs 11 + x cents
3 green frogs + 2 chocolate frogs cost 57cents
3(x) + 2(11 + x) = 57
3x + 22 + 2x = 57
       5x = 57 - 22
       5x = 35
        x = 7
Green Frog costs 7 cents
Chocolate Frog costs 18cents.
Hope this helps.
:-)