Take the cube root of both the left and right sides. What times what times what equals 125? What times what times what equals 27? Same with the x. x * x * x= x^3 because when multiplying x, we add the exponents. 5 * 5 * 5= 125. 3 * 3 * 3= 27.
x^3= 125/27
x= 5/3 or 1.6666667
Hope this helps! :)