5^x-1<25 <br> 3^3-x>9 6^2x<1/36
1. 5^(x-1)<25;<br>5^x/5<25;<br>5^x<5³;<br>x<3;<br>2.3^(3-x)>9; 3³/3^x>3²; 3¹>3^x; x<1;<br>3.6^2x<1/36;<br>36^x<36⁻¹<br>x<-1;