Is 16% of 40 the same as 40% of 16

How to write four times a number, minus 6,is equal to theee times the number+8 as an equqtion

The anwser cause i do not understand just plez

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%