Question

What is the solution of the equation 1

Answer 1

To solve we need to isolate $x$.

Start by adding 1 to both sides:
$4x-1+1=7+1$
$4x=8$

Then divide both sides by 4:
$\frac{4x}{4} = \frac{8}{4}$
$x=2$

Answer 2

4x-1 =  7
   +1   +1
   4x = 8
    4    4 
    x = 2