X squared minus 14 equals 5x plus 67 minus 5x

X² - 14 = 5x + 67 - 5x

First, combine like terms. 5x will cancel out with - 5x.

x² - 14 = 67

x² = 81

√x² = √81

x = + / - 9

The answer will most likely be 9, but the proper answer is both positive and negative 9.

The awnser is either x = 9 or x = - 9