Question

What is the first step you will use to separate the variable and then solve the equation $x-1=0$ ?

• A. Adding 2 on both sides
• B. Adding 1 on both sides
• C. Adding -1 on both sides
• D. Adding 2 on both sides

Answer 1

The correct option is B Adding 1 on both sides

$x-1=0$
Adding 1 on both the sides, we get
$x-1+1=0+1$
$\Rightarrow x=1$