1. 10^(9x-5)=6^9x-9 x=...?
2. 9*5^(5x-3)=23 x=...?
take the log of each side
1) 9x-5=(9x-9)/log6
9x(log6-1)=5-9/log6
solve for x.
check my work.
2. 9*5^(5x-3)=23 x=...?
1) 9x-5=(9x-9)/log6
9x(log6-1)=5-9/log6
solve for x.
check my work.