Frida started to solve the equation 3x = 36 by adding 3 to both sides. Explain why Friday's method will not solve the equation.

x = 12

Step-by-step explanation:

Frida adds 3 to both the sides of the equation 3x = 36.

When we are to solve an equation we tend to simplify it and move towards arriving at a value for the variable.

When Frida adds 3 to both sides, it becomes 3x + 3 = 36 + 3

⇒ 3x + 3 = 39

This has complicated the equation. Instead Frida should have divided both the sides of the equation by 3. That would have resulted in x = 12 right away!.