Given
first, convert
to base 25 to match the other term.
Substitute above identity into original equation:
Use substiution
above equation becomes
2/u-3u=1
multiply by u and solve for u:
=> u=2/3 or u=-1
case A:. u=2/3 =>
=>
case B: u=-1 =>
which does not give a real solution, so reject.
See graph below for confirmation of solution.
60,000+ 5,000 + 50 + 8 and sixty five thousand fifty eight
B because 3 times 6 makes 18, so 5 times six is 30 which is B