Can yo solve for x and y if

3^2x+y.5^x-y=625

3^(2x + y) .5^(x - y) = 625
3^(2x + y) .5^(x - y) = 625 × 1
3^(2x + y) .5^(x - y) = 5^4 × 3^0
compare the index
(2x + y) = 0
x - y = 4
add
3x = 4
x = 4/3
y = 4/3 – 4
= – 8/3
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no can do. :p