To solve this equation, we first simplify the left side of the equation:

(15/28 - x) + 19/28 = 25/28

Combine the fractions on the left side:

(15 - 28x + 19) / 28 = 25/28

Combine the numbers:

(34 - 28x) / 28 = 25/28

Now cross multiply to solve for x:

34 - 28x = 25

Subtract 34 from both sides:

-28x = -9

Divide by -28:

x = 9/28

Therefore, the solution to the equation is x = 9/28.