250+X=530-45

To solve the equation \(250 + X = 530 - 45\), first simplify the right side:

\[ 530 - 45 = 485. \]

Now, the equation becomes:

\[ 250 + X = 485. \]

Next, isolate \(X\) by subtracting 250 from both sides:

\[ X = 485 - 250. \]

Calculating the right side:

\[ X = 235. \]

So, the solution is:

\[ X = 235. \]