To find the value of x that makes the equation correct, we can solve for x. Let's start by subtracting 10 from both sides of the equation:
2/5x + 10 - 10 = 30 - 10
Simplifying:
2/5x = 20
Next, we can multiply both sides of the equation by the reciprocal of 2/5, which is 5/2:
(5/2) * (2/5x) = (5/2) * 20
Simplifying:
x = 50
So, the value of x that makes the equation correct is 50.
