To solve the equation, we will use the steps below:
Step 1: Subtract 4 from both sides of the equation.
2/5x + 4 - 4 = 1/5 - 4
2/5x = 1/5 - 4
Step 2: Simplify the equation.
2/5x = 1/5 - 20/5
2/5x = -19/5
Step 3: Multiply both sides of the equation by the reciprocal of 2/5, which is 5/2.
(5/2)(2/5x) = (5/2)(-19/5)
The 2/5 on the left side of the equation cancels out.
1x = -19/2
Therefore, the solution to the equation is x = -19/2.