Question

Solve the simultaneous equations

2^x-5^y=3
and
2^(x-2)+5^(y-2)=2

Answer 1

Lat

a = 2^(x-2)
b = 5^(y-2)

Then you have

4a-25b = 3
a+b = 2

Hmmm. I suspect a typo, since the results are strange.