Question 669914
solve
27^x=(1/243)^(x-2)
27^x=(243^-1)^(x-2)
27^x=(243^(2-x))
xlog27=(2-x)log243
x/(2-x)=log243/log27≈1.6667=5/3
x=(2-x)*5/3
3x=10-5x
8x=10
x=10/8
x=5/4=1.25