Exponential Equations

Solve

4^2x=2^5-x
and
9^x+1=27^2x-3

For the first one I keep getting like .4, and forthe life of me I can not figure out what im not doing right.

I assume you mean

Note that

Now if two bases are equal then their exponents must also be equal so you get the linear equation which is easy to solve


For question 2 use the fact that

Thank you!