Let f(x) = 5x + 12. Find f−1(x).
Replace, x = y Orx = f(x)then us stay:x = 5y + 12Isolate 5y5y = x - 12Dividing both the sides by 5y = x/5 - 12/5Then, replace y = f^-(x)f^-(x) = x/5 - 12/5Hope this helps